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Preschool Instruction and Children’s Emergent Literacy Growth Carol McDonald Connor Florida State University Frederick J. Morrison and Lisa Slominski University of Michigan Preschoolers’ (N 156) classroom language and literacy experiences, defined across multiple dimen- sions, and their vocabulary and emergent literacy development were investigated. Videotaped classroom observations revealed substantial variability in amount and types of language and emergent literacy activities, across classrooms and for individual children within classrooms. Generally, more time in emergent code-focused activities was associated with preschoolers’ alphabet and letter–word recognition growth, whereas more time in meaning-focused activities (e.g., book reading) was related to vocabulary growth. Only teacher- and teacher– child-managed activities were associated with alphabet and letter– word growth, whereas child-managed experiences, including play, were also associated with vocabulary growth. Overall, the effect size for student-level, code-focused instruction (small group) was about 10 times greater than was its classroom-level (whole-class) counterpart. There were Child Instruction interactions, with the impact of different activities varying with preschoolers’ incoming vocabulary and emergent literacy. Keywords: prekindergarten, language development, reading, early childhood development Accumulating evidence reveals that high-quality preschool ex- periences may lead to stronger student academic outcomes, espe- cially for children at risk for academic underachievement (Camp- bell, Pungello, Miller-Johnson, Burchinal, & Ramey, 2001; Conyers, Reynolds, & Ou, 2003; Graue, Clements, Reynolds, & Niles, 2004; Nelson, Benner, & Gonzalez, 2003; Reynolds & Ou, 2004; Reynolds, Ou, & Topitzes, 2004; Reynolds, Temple, Rob- ertson, & Mann, 2003). This finding is important because in the United States, fully one third of children fail to read at basic levels by fourth grade (National Assessment of Educational Progress, 2003, 2005), and the percentage is higher for children living in poverty or who belong to certain ethnic minorities. High-quality preschool interventions have been shown to reduce referral to special education and to enhance overall educational attainment (Barnett, 1995; Conyers et al., 2003; Nelson et al., 2003; Reynolds & Ou, 2004; Reynolds et al., 2004). However, there is substantial variability in classroom practices and resulting child outcomes across programs and studies (Barnett, 1995; Nelson et al., 2003), and research seeks to understand how specific types of preschool classroom experiences relate to child outcomes. Teachers’ sensi- tivity and responsiveness (National Institute of Child Health and Human Development [NICHD] Early Child Care Research Net- work [ECCRN] studies), their use of cognitively challenging talk and rare words (e.g., Dickinson & Tabors, 2001), and their styles of book reading including dialogic reading (Whitehurst, Arnold, et al., 1994; Whitehurst, Epstein, et al., 1994) as well as child- initiated practices (Schweinhart & Weikart, 1988), for example, are related to positive child outcomes, and these findings have been consistent in multiple settings (Conyers et al., 2003; NICHD ECCRN, 2002). Generally, there is less research and evidence that a focus on academic skills provides consistently stronger child outcomes (Graue et al., 2004; Stipek et al., 1998; Stipek, Feiler, Daniels, & Milburn, 1995). Yet attention to the content of and amount of time spent in specific preschool emergent literacy activities and the relation of these activities to preschoolers’ emer- gent literacy development may be important, especially with the inauguration of new universal prekindergarten initiatives and the recent findings regarding Head Start efficacy (U.S. Department of Health and Human Services, 2005). The purpose of this study was to closely examine the language, emergent literacy, and other learning experiences that are provided to preschoolers and to investigate the contribution of these expe- riences to students’ language and emergent literacy skill develop- ment. It is generally agreed that emergent literacy “involves the skills, knowledge, and attitudes that are developmental precursors to conventional forms of reading and writing. These skills are the basic building blocks for how students learn to read and write” (Connor & Tiedemann, 2005, p. 1). An emergent literacy perspec- Carol McDonald Connor, Florida Center for Reading Research, Florida State University; Frederick J. Morrison and Lisa Slominski, Department of Psychology, University of Michigan. This work was supported by National Institute of Child Health and Human Development Grant R01 HD27176 and National Science Founda- tion Grant 0111754. Additional support was provided by U.S. Department of Education, Institute for Education Sciences Grant R305H04013. Any opinions, findings, conclusions, or recommendations expressed in this article are those of the authors and do not necessarily reflect the views of these agencies. We thank Claire Cameron for her help developing and coordinating the video coding; Abby Jewkes, Shayne Piasta, and Phyllis Underwood for their comments on drafts of this article; the members of the University of Michigan Pathways to Literacy project; the Florida State University Indi- vidualizing Student Instruction Project; the Florida State University writing group; and the participating families, teachers, and school district admin- istration and personnel without whom this study would not have been possible. Correspondence concerning this article should be addressed to Carol McDonald Connor, Florida Center for Reading Research, Florida State University, 227 North Bronough, Suite 7250, Tallahassee, FL 32301. E-mail: [email protected] Journal of Educational Psychology Copyright 2006 by the American Psychological Association 2006, Vol. 98, No. 4, 665– 689 0022-0663/06/$12.00 DOI: 10.1037/0022-0663.98.4.665 665
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Preschool Instruction and Children s Emergent Literacy Growth

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Page 1: Preschool Instruction and Children s Emergent Literacy Growth

Preschool Instruction and Children’s Emergent Literacy Growth

Carol McDonald ConnorFlorida State University

Frederick J. Morrison and Lisa SlominskiUniversity of Michigan

Preschoolers’ (N � 156) classroom language and literacy experiences, defined across multiple dimen-sions, and their vocabulary and emergent literacy development were investigated. Videotaped classroomobservations revealed substantial variability in amount and types of language and emergent literacyactivities, across classrooms and for individual children within classrooms. Generally, more time inemergent code-focused activities was associated with preschoolers’ alphabet and letter–word recognitiongrowth, whereas more time in meaning-focused activities (e.g., book reading) was related to vocabularygrowth. Only teacher- and teacher–child-managed activities were associated with alphabet and letter–word growth, whereas child-managed experiences, including play, were also associated with vocabularygrowth. Overall, the effect size for student-level, code-focused instruction (small group) was about 10times greater than was its classroom-level (whole-class) counterpart. There were Child � Instructioninteractions, with the impact of different activities varying with preschoolers’ incoming vocabulary andemergent literacy.

Keywords: prekindergarten, language development, reading, early childhood development

Accumulating evidence reveals that high-quality preschool ex-periences may lead to stronger student academic outcomes, espe-cially for children at risk for academic underachievement (Camp-bell, Pungello, Miller-Johnson, Burchinal, & Ramey, 2001;Conyers, Reynolds, & Ou, 2003; Graue, Clements, Reynolds, &Niles, 2004; Nelson, Benner, & Gonzalez, 2003; Reynolds & Ou,2004; Reynolds, Ou, & Topitzes, 2004; Reynolds, Temple, Rob-ertson, & Mann, 2003). This finding is important because in theUnited States, fully one third of children fail to read at basic levelsby fourth grade (National Assessment of Educational Progress,2003, 2005), and the percentage is higher for children living inpoverty or who belong to certain ethnic minorities. High-qualitypreschool interventions have been shown to reduce referral to

special education and to enhance overall educational attainment(Barnett, 1995; Conyers et al., 2003; Nelson et al., 2003; Reynolds& Ou, 2004; Reynolds et al., 2004). However, there is substantialvariability in classroom practices and resulting child outcomesacross programs and studies (Barnett, 1995; Nelson et al., 2003),and research seeks to understand how specific types of preschoolclassroom experiences relate to child outcomes. Teachers’ sensi-tivity and responsiveness (National Institute of Child Health andHuman Development [NICHD] Early Child Care Research Net-work [ECCRN] studies), their use of cognitively challenging talkand rare words (e.g., Dickinson & Tabors, 2001), and their stylesof book reading including dialogic reading (Whitehurst, Arnold, etal., 1994; Whitehurst, Epstein, et al., 1994) as well as child-initiated practices (Schweinhart & Weikart, 1988), for example,are related to positive child outcomes, and these findings havebeen consistent in multiple settings (Conyers et al., 2003; NICHDECCRN, 2002). Generally, there is less research and evidence thata focus on academic skills provides consistently stronger childoutcomes (Graue et al., 2004; Stipek et al., 1998; Stipek, Feiler,Daniels, & Milburn, 1995). Yet attention to the content of andamount of time spent in specific preschool emergent literacyactivities and the relation of these activities to preschoolers’ emer-gent literacy development may be important, especially with theinauguration of new universal prekindergarten initiatives and therecent findings regarding Head Start efficacy (U.S. Department ofHealth and Human Services, 2005).

The purpose of this study was to closely examine the language,emergent literacy, and other learning experiences that are providedto preschoolers and to investigate the contribution of these expe-riences to students’ language and emergent literacy skill develop-ment. It is generally agreed that emergent literacy “involves theskills, knowledge, and attitudes that are developmental precursorsto conventional forms of reading and writing. These skills are thebasic building blocks for how students learn to read and write”(Connor & Tiedemann, 2005, p. 1). An emergent literacy perspec-

Carol McDonald Connor, Florida Center for Reading Research, FloridaState University; Frederick J. Morrison and Lisa Slominski, Department ofPsychology, University of Michigan.

This work was supported by National Institute of Child Health andHuman Development Grant R01 HD27176 and National Science Founda-tion Grant 0111754. Additional support was provided by U.S. Departmentof Education, Institute for Education Sciences Grant R305H04013. Anyopinions, findings, conclusions, or recommendations expressed in thisarticle are those of the authors and do not necessarily reflect the views ofthese agencies.

We thank Claire Cameron for her help developing and coordinating thevideo coding; Abby Jewkes, Shayne Piasta, and Phyllis Underwood fortheir comments on drafts of this article; the members of the University ofMichigan Pathways to Literacy project; the Florida State University Indi-vidualizing Student Instruction Project; the Florida State University writinggroup; and the participating families, teachers, and school district admin-istration and personnel without whom this study would not have beenpossible.

Correspondence concerning this article should be addressed to CarolMcDonald Connor, Florida Center for Reading Research, Florida StateUniversity, 227 North Bronough, Suite 7250, Tallahassee, FL 32301.E-mail: [email protected]

Journal of Educational Psychology Copyright 2006 by the American Psychological Association2006, Vol. 98, No. 4, 665–689 0022-0663/06/$12.00 DOI: 10.1037/0022-0663.98.4.665

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tive departs from a reading readiness model. In the readinessmodel, learning to read begins with formal school-based readinginstruction. From an emergent literacy perspective, there is noboundary between what is considered to be the conventionalreading that students learn in school and everything that comesbefore. Rather, the emergent literacy perspective views literacy-related behaviors that occur in the preschool period as legitimateand important features on a developmental continuum of literacy(Bowman, Donovan, & Burns, 2001; Shonkoff & Phillips, 2000;Teale & Sulzby, 1986).

Short- and Long-Term Benefits of Preschool Intervention

Research on preschool interventions has revealed short-term andlong-term social and cognitive gains for students who may expe-rience academic underachievement because of poverty, disabili-ties, and other risk factors. Documented advantages include re-duced referral to special education, reduced grade retention, higherrates of high school graduation, and reduced levels of juveniledelinquency (Barnett, 1995; Barnett, Young, & Schweinhart,1998; Bryant, Peisner-Feinberg, & Clifford, 1993; Burchinal,Peisner-Feinberg, Pianta, & Howes, 2002; Campbell et al., 2001;Dickinson & Smith, 1994; Durlak, 2003; Lazar, Darlington, Mur-ray, Royce, & Snipper, 1982; Morrison, Bachman, & Connor,2005; see also Nelson et al., 2003; Peisner-Feinberg & Burchinal,1997).

Perhaps the most compelling long-term positive outcomes comefrom research on model programs like the High Scope/PerryPreschool project, the Abecedarian project, and the ChicagoChild–Parent Centers (or Chicago Title I Project; Barnett, 1995).These studies, initiated 20 or more years ago, each independentlyprovide evidence of short- and long-term benefit to their partici-pants relative to a control group of students. Most recently, forexample, the Chicago Child–Parent Centers calculated that forevery dollar spent on the preschool intervention, society realized a$7.14 return in saved education and societal costs from reducedreferral to special education, reduced grade retention, and reducedjuvenile delinquency (Reynolds, Temple, & Ou, 2003; Reynolds,Temple, Robertson, & Mann, 2003).

Still, in light of society’s substantial investment in public pre-school programs, such as Head Start, Early Reading First, Title I,and universal preschool, as Reynolds and colleagues noted (2004),“greater attention to how the long-term effects come about isneeded to inform program improvement and expansion efforts” (p.1301). Accumulating evidence indicates that children’s early lan-guage and literacy experiences in the classroom make an importantcontribution to the long-term effects. Studies, such as the NICHDStudy of Early Child Care and Youth Development (e.g., NICHDECCRN, 2002), Harvard Home-School Study (Dickinson & Ta-bors, 2001; Smith & Dickinson, 1994), intervention studies(Torgesen et al., 2001; Whitehurst, Arnold, et al., 1994; White-hurst, Epstein, et al., 1994), and others (Nelson et al., 2003) haveclearly revealed that cognitively challenging talk (Dickinson &Tabors, 2001; Smith & Dickinson, 1994), exposure to rare words(Beals & Tabors, 1995; Huttenlocher, Vasilyeva, Cymerman, &Levine, 2002), shared book reading, reading to students usingdialogic reading techniques (Cook-Gumperz, 1986; Crain-Thoreson & Dale, 1999; Dickinson & Tabors, 2001; Lonigan &Whitehurst, 1998; Whitehurst, Arnold, et al., 1994; Whitehurst,

Epstein, et al., 1994), play (Pelligrini & Galda, 1993), and use ofplayful activities to stimulate learning (Bowman et al., 2001;Howes & Smith, 1995; Roskos & Christie, 2000) all enhancedchildren’s language and early reading skills.

Virtually none of these studies, however, focused on the explicitinstruction of emergent literacy in preschool.(Graue et al., 2004),and the published findings are mixed. For example, preschoolers inprograms that provided explicit instruction in basic reading skillsshowed stronger skills but less positive feelings about themselvesand less motivation than did students in child-centered programs,which encouraged children’s learning through play (Stipek et al.,1995). In still another study, preschoolers in classrooms that fo-cused on basic skills demonstrated weaker cognitive and motiva-tion outcomes than did preschoolers in classrooms that de-emphasized basics skills and had more positive social climates(Stipek et al., 1998). However, these studies tended to pit one kindof curriculum against the other, which may oversimplify the com-plex effects of classroom experiences on students’ outcomes. Newevidence, using teacher report, suggests that curricula that werehigh in teacher-directed instruction with specific content and si-multaneously high in child-initiated, teacher-responsive ap-proaches yielded more positive short- and long-term educationaland social outcomes for preschoolers than did programs that em-phasized one over the other or neither (Graue et al., 2004). Hence,using two or more dimensions of instruction coupled with directobservation of preschool classroom language and literacy activitiesmay yield a more nuanced view of preschool experiences and theireffect on students’ outcomes.

Dimensions of Instruction

One challenge facing researchers is how to capture the com-plexities of preschoolers’ classroom experiences while also per-mitting statistical analysis of the effects of these experiences onstudent outcomes. Much of preschool research has compared therelative effectiveness of three curriculum types based on differenttheories of learning (Bowman et al., 2001, pp. 138–139): (a) directinstruction, in which the teacher uses drill and practice lessons thatteach specific skills incrementally; (b) traditional approaches,which assume that children will learn when they are ready as longas stimulating environments are provided; and (c) cognitive cur-riculum, in which learning is viewed as an active exchange be-tween children and their environment, which includes the teacher.However, during any given school day, teachers may provide avariety of experiences that transcend all three of these majorcurriculum types. The teacher may use direct instruction for teach-ing letters but a cognitive curriculum approach during sharing timeand more traditional approaches as she or he sets up the dramaticplay center. Comparing one curriculum with another may overlookthe complexity of learning activities preschoolers actually experi-ence in their classroom. Thus, for this study, we sought to examinethe content or focus of the learning experiences, using multipledimensions, rather than the type of curriculum being utilized.

Additionally, accumulating evidence indicates that emergentliteracy is a multidimensional construct (Senechal, 2006; Senechal& LeFevre, 2001) rather than a more global construct as originallyproposed by Teale and Sulzby (1986). As Senechal and LeFevre(2001) observed, there is striking evidence that emergent literacyis distinct from oral language and metalinguistic awareness (Ma-

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son & Stewart, 1990; Whitehurst & Lonigan, 1998). Differentcomponents of the home literacy environment—formal versusinformal emergent literacy experiences—differentially predict thedistinct components of emergent literacy (Senechal & LeFevre,2002; Senechal, LeFevre, Thomas, & Daley, 1998). Using a par-allel argument, we contend that if emergent literacy has multipledimensions, then examining sources of classroom instruction’sinfluence multidimensionally should prove more informative thanexamining the impact of instruction more globally. Thus, weexamined the content of classroom literacy activities across fourdimensions: teacher managed (TM) versus teacher–child managed(TCM) versus child managed (CM), code focused versus meaningfocused, explicit versus implicit, and student- versus classroom-level instruction. Each dimension is discussed below.

TM Versus TCM Versus CM

The dimension TM versus TCM versus CM considers who isfocusing the child’s attention—the teacher or the student (Connor,Morrison, & Katch, 2004; Connor, Morrison, & Petrella, 2004;Morrison et al., 2005) or whether the attention is jointly focused(teacher and students interacting). This dimension may be con-fused with teacher-directed and child-centered (Bowman et al.,2001, chap. 5) or child-initiated learning (Schweinhart & Weikart,1988), but it is substantially different. In the framework used inthis study, child-centered or child-initiated learning may be TM orCM or managed jointly: TCM. What is at issue is who is directingthe child’s attention, the teacher and/or the child. A teacher readinga book to students without discussion, even if the children selectedthe book, would be considered TM because the teacher is focusingthe children’s attention and is doing most of the talking. Sharing,scaffolding, or interactive read-alouds are considered to be TCMwithin this framework because the teacher is actively involvedwith and responsive to the child. There is good evidence thatwarmer and more responsive teacher–child interactions are asso-ciated with stronger student outcomes (Connor, Son, Hindman, &Morrison, 2005; Graue et al., 2004).

In contrast, activities in which the child is working indepen-dently or with peers, such as completing worksheets and pretendreading alone or with a friend in the library corner, are consideredCM because the student is directing his or her own attentionwithout the support of the teacher. Peer interactions are consideredCM because students, not teachers, are supporting each other’slearning. There is evidence that such peer-managed activities aresubstantially different from TM activities (Palincsar, Collins, Ma-rano, & Magnusson, 2000).

Code-Focused Versus Meaning-Focused Activities

The code-focused versus meaning-focused dimension capturesthe content focus of language and emergent literacy activities.Although clearly preschoolers are not taught to read as such, thereis evidence that appropriate preschool activities can enhance theiremergent literacy—including letter knowledge and phonologicalawareness. These kinds of activities may be considered emergentcode-focused activities (Foorman, Francis, Fletcher, Schatschnei-der, & Mehta, 1998; Rayner, Foorman, Perfetti, Pesetsky, & Sei-denberg, 2001). These would include teaching children how toname and write letters, to rhyme words (Torgesen, Burgess, Wag-

ner, & Rashotte, 1994; Torgesen et al., 1999), to relate letters to thesounds they make, and to sound out words (phonological decod-ing). In the preschool literature, many of these activities would beassociated with curricula that focus on basic skills (Graue et al.,2004; Stipek et al., 1995) or direct instruction (Schweinhart &Weikart, 1988).

In contrast, activities designed to help students understandwords and passages, comprehend what is read to them or what theyare reading, and enhance receptive and expressive language skillsincluding listening comprehension, which support emerging read-ing comprehension (Scarborough, 1990), may be consideredmeaning-focused activities (Dahl & Freppon, 1995; Foorman etal., 1998; Juel & Minden-Cupp, 2000). Such activities includeexplaining the meaning of a word (i.e., vocabulary activities),(National Reading Panel, 2000), reading aloud to children (White-hurst, Arnold, et al., 1994; Whitehurst, Epstein, et al., 1994),discussion and sharing (Snow, 2001), and children’s emergentreading and writing activities (National Reading Panel, 2000;Sulzby, 1985).

Explicit Versus Implicit

The dimension explicit versus implicit speaks to the specificityof learning (Senechal, 2006; Senechal & LeFevre, 2001, 2002;Senechal et al., 1998) and incorporates the idea that activities canbe explicitly or implicitly focused on promoting a specific out-come; in this study, either language or emergent literacy. Thisdimension is defined depending on the outcome being explored.So, for example, if the outcome is language or vocabulary, activ-ities that directly focus on language development (e.g., reading tochildren; Senechal & LeFevre, 2002) would be considered explicitlanguage activities. If the outcome is learning letters and phono-logical decoding, then activities that focus on these outcomes (e.g.,rhyming games) would be explicit emergent literacy or emergentdecoding activities. However, children may learn letters and lettersounds indirectly through activities like shared storybook reading.Thus, reading to children would be an implicit emergent literacyactivity, although it is an explicit language activity. This dimen-sion is similar to the formal versus informal framework presentedby Senechal and LeFevre (2002), in which parents explicitlyteaching their children letters is considered formal literacy expo-sure, whereas parents reading to children is considered informalliteracy exposure.

Play (e.g., child-selected activities such as dramatic play, build-ing blocks, etc.) is implicit for both emergent literacy and languageoutcomes because children are focusing on having fun (e.g., whenthey pretend to write birthday party invitations) rather than, forexample, learning letters. Researchers might expect such implicitactivities to impact children’s emergent literacy and language,although they do not specifically target skills associated withemergent literacy or language (Bowman et al., 2001; Pelligrini &Galda, 1993; Rowe, 1988). Note that within our coding system,play has a precise definition and is distinct from games, fine andgross motor activities, art, and music, which each have their owncodes (see Appendix A). Math, science, or social studies activities,although coded, are beyond the scope of this study, although onemight argue that focus on these content areas might implicitlycontribute to children’s vocabulary development, for example.

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Future studies will focus on the role of these activities inpreschool.

Classroom Level Versus Student Level

The dimension classroom level versus student level considersthe extent to which instruction is the same or different for eachstudent in the classroom. Language and literacy activities may beclassroom level, such as when the teacher is reading aloud duringcircle time. All of the students are doing substantially the samething at the same time. Even if the students are working in smallgroups or individually, if they are all doing substantially the samething (e.g., play), then that is classroom-level instruction.

In contrast, for student-level instruction, students in one class-room are engaged in substantially different activities at the sametime. Teachers may provide student-level instruction in smallgroups or they may work with children individually (e.g., centerswith different activities, tutoring one child while the rest do otheractivities). The video coding system permits coding of individual

student participation in specific activities so that researchers canexamine this dimension of instruction.

Note that specific types of activities can be the same across theclassroom-level versus student-level dimension. Teachers can readaloud to the entire class (TM–meaning focused–classroom level)or can read aloud to a small group of children while the rest of thechildren engage in substantially different activities (TM–meaningfocused–student level).

Putting the Dimensions Together

A key feature of these dimensions is that they are operatingsimultaneously. Thus, activities fall in sectors for classroom-levelactivities and student-level activities with, potentially, 12 combi-nations in all (see Table 1).

Because our coding system was designed to capture the contentof the activities observed rather than the motivator (teacher orchild), we did not focus specifically on teacher-directed versuschild-initiated, teacher-responsive instruction (Bowman et al.,

Table 1Observed Language and Literacy Activities Categorized by Dimensions of Instruction—Teacher Versus Child Managed, ExplicitVersus Implicit, and Code Versus Meaning Focused, for Classroom-Level and Student-Level Instruction

Dimension Teacher managed (TM) Teacher–child managed (TCM) Child managed (CM)

Classroom-level instruction

Explicit decoding, code focused or implicitlanguage–vocabulary, code focused

CF–clSpellingPhonological awarenessAlphabet activityLetter–sound correspondenceInitial consonant stripping

Implicit decoding, code focused or explicitlanguage–vocabulary, meaning focused

MF–cl MF–cl MF–clTeacher read-aloud Chorale reading aloud Sustained silent reading

DiscussionTeacher read-aloud–discussion

combinedConventions of printVocabulary activitiesOther language arts activitiesSharing

Implicit decoding and implicit language–vocabulary, meaning focused

MF–play–clPlay

Student-level instruction

Explicit decoding, code focused or implicitlanguage–vocabulary, code focused

CF–st CF–stAlphabet activity HandwritingHandwriting practice Alphabet activity

Implicit decoding, code focused or explicitlanguage–vocabulary, meaning focused

MF–cl MF–st MF–stTeacher read-aloud Teacher read-aloud–discussion

combinedWriting (invented spelling)

Discussion Small groupConventions of print Sustained silent readingVocabulary activitiesOther language arts activities Individual sustained silent readingSharingScaffolded sustained silent

readingImplicit decoding and implicit language–

vocabulary, meaning focusedCM–MF–st play

Play

Note. CM–MF–st and CM–MF–st play are summed to create the CM implicit-decoding variable. MF � meaning focused; CF � code focused; st �student level; cl � classroom level.

668 CONNOR, MORRISON, AND SLOMINSKI

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2001, chap. 5). We did record the activities such approaches mightgenerate, however, using our other dimensions (explicit vs. im-plicit; TCM vs. CM). Thus, we do not distinguish between teacherread-aloud activities initiated by the child (the child asks theteacher to read the book or the teacher notices that Demario[pseudonym] is interested in fish and selects a book on that topic)or by the teacher (the teacher selects the book and reads it to thechildren). We do capture how interactive the read-aloud was bydistinguishing teacher read-aloud and teacher read-aloud with dis-cussion, for example.

Child Characteristics

Accumulating evidence reveals a number of child literacy skillsin preschool and kindergarten that consistently predict later read-ing and academic success, including alphabet knowledge, phono-logical awareness, letter–word recognition, and phonological de-coding (NICHD ECCRN, 2005; Poe, Burchinal, & Roberts, 2004;Rayner et al., 2001; Scarborough, 1998; Schatschneider, Fletcher,Francis, Carlson, & Foorman, 2004; Snow, Burns, & Griffin,1998). Language skills, particularly vocabulary, also appear to beconsistent predictors of later reading success, especially as com-prehension of what is read becomes important (Anderson & Free-body, 1981; Loban, 1976; National Reading Panel, 2000; NICHDECCRN, 2005; Poe et al., 2004; Scarborough, 1990, 2001; Snowet al., 1998; Storch & Whitehurst, 2002). In contrast to earlydecoding skills, research reveals that growth in vocabulary skillsmay be highly stable and resistant to intervention and the effect ofschooling (Hart & Risley, 1995; Morrison, Smith, & Dow-Ehrensberger, 1995). There is evidence, however, that rich literacy(meaning-focused) experiences at home (Beals & DeTemple,1993; Senechal et al., 1998), during storybook reading (Robbins &Ehri, 1994), and in preschool (Dickinson, Anastasopolous, Mc-Cabe, Peisner-Feinberg, & Poe, 2003; Dickinson & Tabors, 2001)can contribute to young children’s language growth. In this study,we examined variability in preschoolers’ alphabet naming, letter–word recognition, and vocabulary growth and how such growthmight be affected by variation in preschool classroom literacyactivities.

The effect of amount and types of classroom activities, however,may depend on the language and early reading skills with whichchildren begin school. Child � Instruction interactions have beenobserved in first grade (Connor, Morrison, & Katch, 2004; Foor-man et al., 1998; Juel & Minden-Cupp, 2000), in third grade(Connor, Morrison, & Petrella, 2004), and in interventions forchildren with learning disabilities (Torgesen, 2000). One study offirst-grade classrooms (Connor, Morrison, & Katch, 2004) foundthat students with lower fall decoding and vocabulary skills dem-onstrated greater decoding skill growth in classrooms that spentmore time in TM explicit decoding activities, with small amountsof CM meaning-focused activities in the fall that increasedthroughout the school year. Yet the opposite was the case forstudents with stronger fall decoding and vocabulary skills. Forthem, time spent in explicit decoding instruction had little impact,yet students demonstrated greater decoding skill growth when theywere in classrooms with higher amounts of CM meaning-focusedactivities all year long. In this study, we investigated whether thereare similar Child � Instruction interaction effects for preschoolers.

Research Questions

The purpose of this study was to examine the association ofamount and type of preschool language and literacy activities withstudents’ vocabulary and emergent reading skill growth. The fol-lowing research questions were posed: (a) What is the nature ofvariation (amount and type) in preschool language and literacyactivities (both explicit and implicit) observed in preschool class-rooms relative to other activities (art, music, math, etc.)? (b) Howare differing amounts of time spent in language and literacyactivities related to preschoolers’ vocabulary and emergent literacygrowth, and does the effect of specific types of preschool languageand literacy activities, across multiple dimensions, depend on theoutcome of interest? For example, do preschool activities thatpredict letter–word knowledge also contribute to vocabularygrowth? and (c) Does the effect of amount and type of preschoollanguage and literacy activities depend on the language and earlyreading skills children bring to the classroom? Are there Child �Instruction interactions?

For the first research question, we hypothesized that in thesehigh-quality preschool classrooms, at least some time would bedevoted to explicit and implicit emergent literacy and languageactivities but that much of the day would include other activitiessuch as art, math, and noninstructional time.

With regard to the second research question, we hypothesizedthat language and literacy instructional activities, both explicit andimplicit, would be associated with growth in preschoolers’ lan-guage and emergent literacy. On the basis of previous researchfindings, we anticipated that explicit and implicit meaning-focusedactivities might have a positive effect on students’ vocabularygrowth but not on letter–word or alphabet knowledge growth inlight of the specificity found in other studies with preschoolers(Senechal & LeFevre, 2002; Senechal et al., 1998). Predictionsregarding the effect of explicit, emergent, code-focused instructionwere more difficult given the equivocal research findings in thisarea. We conjectured, relying on studies with parents (Senechal &LeFevre, 2002) and preschool curriculum comparisons (Graue etal., 2004; Stipek et al., 1995), that more time spent in explicitcode-focused instruction would be associated with greater growthin students’ emergent literacy skill growth (e.g., alphabet andletter–word) but would not be systematically related to children’svocabulary growth.

With regard to our third research question, we hypothesized thatthe effect of specific language and literacy activities would dependon students’ entering vocabulary, alphabet, and letter–word recog-nition skills. We anticipated that children with weaker early liter-acy and vocabulary scores would demonstrate greater skill growthwhen they spent greater amounts of time in TM and TCM activ-ities focused on activities explicitly related to a given outcome. Weanticipated that students with weaker alphabet and letter–wordscores would demonstrate greater growth when they experiencedmore time in TCM, explicit, code-focused activities than wouldstudents with stronger alphabet and letter–word skills. Studentswith weaker entering vocabulary skills would demonstrate greatervocabulary growth when they spent more time in TCM meaning-focused activities that focused explicitly on language developmentthan would students with stronger fall vocabulary skills.

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Method

Participants

This study was conducted in a transitioning economically and ethnicallydiverse community, located on the urban fringe of a major midwestern city,in a school district serving over 6,400 children from preschool through highschool. The district is fairly unique in that, in addition to Head Start andstate-funded programs for preschool-age children at risk for academicunderachievement, the district provides state-licensed preschool (full-dayand half-day) programs for typically developing 3- and 4-year-old studentson a fee-for-service basis. Classrooms are housed in six elementary schoolsthroughout the district. The district has open borders, which means thatstudents living in the neighboring communities (including the major city)could attend district schools.

Student participants were recruited at the beginning of the school yearthrough direct and backpack mail. Any child who attended the schooldistrict preschool program was eligible to join the study. Approximately38% of the parents who were invited agreed to participate. Eighty childparticipants were girls and 76 were boys (N � 156). Children were, onaverage, 4 years of age and ranged from 3 to 5 years of age in the fall. Theyrepresented the diversity of the district fairly well. Frequent interactionswith teachers and participating children in the schools indicated thatchildren whose parents returned the consent form did not differ appreciablyfrom children whose parents did not. We deliberately reached out andextended multiple invitations to parents of children in the Head Start andstate-supported preschool programs. On the basis of parent report, 28 of131 children belonged to ethnic minorities including African American(n � 8), Hispanic (n � 4), Middle Eastern (n � 8), and Asian (n � 8).Parents reported the remaining children to be European, European Amer-ican, or White (n � 103). Ten parents reported that a language other thanEnglish was spoken in the home. Overall, all mothers but one graduatedfrom high school, 27 had 1–3 years of college, 57 completed college, and49 had postgraduate experience; the remaining mothers did not report theireducation level. Fathers demonstrated a similar distribution. All but onecompleted high school, 19 had some college experience, 59 completedcollege, and 45 had postgraduate experience. Missing data analyses re-vealed no significant difference in fall and spring outcomes or for amountand type of literacy instruction received between students for whom parenteducation and ethnicity was reported (i.e., the questionnaire returned orparent did not answer question) and for whom they were not. Race–ethnicgroup and a language other than English spoken at home did not predictchild outcomes once students’ fall scores were entered into the modelduring model building.

Children were followed into 1 of 34 classrooms taught by 25 teachers (9teachers taught morning and afternoon classes or classes that met ondifferent days of the week). There were, on average, 4 child participants perclass, although this varied from 1 to 10. Class size maximum was 16children. Three of the classrooms provided preschool intervention forchildren identified as at risk of underachievement because of poverty orother risk factors. Two of these classrooms were Head Start programs, andone was a state-funded, school-readiness program. The state-funded pro-gram was part of a statewide initiative that served over 25,700 4-year-oldstudents statewide, that cost approximately $3,300 per enrolled child, andthat was ranked 13th in access and 19th in resources among states nation-wide (National Institute for Early Education Research, 2004).

Analyses revealed that children in the Head Start and state-fundedclassrooms (Head Start–state) and children in the fee-for-service class-rooms did not enter preschool with significantly different scores on theletter–word recognition or vocabulary measures (Wilks’s � � .969), F(3,149) � 1.57, p � .198, nor were there age differences. Indeed, only about10% of the students in this sample whose scores fell in the lowest quartile(W score � 312; as discussed below, the W score is a transformation of theRasch ability scale) on the fall Woodcock–Johnson—III Tests of Achieve-ment (McGrew, Werder, & Woodcock, 1991) letter–word recognition

assessment attended the Head Start–state classrooms, although as a per-centage, a greater number of the children in Head Start–state programs(44%) had letter–word scores in the lowest quartile compared with thefee-for-service classrooms (22%). Similar patterns were observed for fallvocabulary skills; only 2 of the 26 children with the lowest fall vocabularyscores (W score � 456) attended the Head Start–state classrooms. Post hocanalyses revealed that children in the Head Start–state classrooms knewsignificantly fewer letters than did children attending fee-for-service class-rooms (about 5 compared with 11), t(151) � –2.14, p � .05, although amultivariate analysis by school revealed no significant difference in fallalphabet, letter–word recognition, or vocabulary scores by school (Wilks’s� � .857), F(15, 400.7) � 1.54, p � .088.

Teachers met all state and district certification requirements and, ingeneral, were well qualified to be preschool teachers. They had, on aver-age, 5.83 years of experience (SD � 5.29) and all had a 4-year degree. Fourteachers had a master’s degree. Teachers for the intervention programs(e.g., Head Start) met the same district certification requirements as theother preschool teachers.

Procedure

This study was conducted during the 1st year (2002–2003) of a 5-yearlongitudinal study on children’s transition to school. Students were indi-vidually assessed in the fall and again in the spring on a battery of languageand literacy tasks. Testing was conducted by research staff in a quiet placein the school building. Parents and teachers completed questionnaires,which were sent to them in the winter and spring of the school year. Parentquestionnaires were designed to obtain information regarding parents’education levels and other sociocultural information about their children,including race and native language. Teacher questionnaires were designedto gather information about teachers’ qualifications including educationallevel, certification, and years of experience teaching. We conducted infor-mal classroom observations throughout the school year and a midyearhalf-day videotaped observation in each classroom to closely examine thelanguage and literacy activities in which teachers and preschool studentswere engaged, in addition to other activities (e.g., math, games, nonin-structional time, etc.).

Measures

Child Assessment

Alphabet task. In this informal task, children were asked to name eachof the 26 lowercase letters in the alphabet as they were presented one at atime using shuffled flash cards. The raw score represents the number ofletters the child identified correctly.

Letter–word recognition. Children’s letter and word recognition skillswere assessed using the Woodcock–Johnson—III Tests of Achievement(McGrew et al., 1991; Mather & Woodcock, 2001) Letter–Word Identifi-cation test. In this task, children were first asked to identify letters in largetype. The remaining items required the child to read words, which werelisted approximately eight to a page and were increasingly unfamiliar. Foranalysis purposes, raw scores were converted to W scores, which are a“special transformation of the Rasch ability scale” (Mather & Woodcock,2001, p. 72). Rasch ability scale scores provide equal-interval measurementcharacteristics. W scores are centered at 500, which represents the achieve-ment of a typical 10-year-old child. The test sample has a W score meanof 327.23 (SD � 34.18, SEM � 3.69) for a child 4 years of age, with amedian reliability of .98 for children in this age range (McGrew et al.,1991).

Vocabulary. Children’s vocabulary was assessed using the Woodcock–Johnson—III Tests of Achievement Picture Vocabulary test. In this task,children are asked to name pictures of increasingly unfamiliar items.Primarily an expressive vocabulary task, it was designed to assess chil-dren’s oral language and lexical knowledge, with a median reliability of

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.81. Again, W scores were used in the analyses, which for this test have atest sample mean of 460.63 (SD � 17.46, SEM � 7.70) for 4-year-oldchildren (McGrew et al., 1991).

Classroom Observations

Classrooms were observed informally throughout the school year. Dur-ing the winter (January, February, or March), the classrooms were video-taped for the entire morning or afternoon (approximately 2 hr). Tapingsessions were scheduled at the teachers’ convenience and avoided days thatstudents participated in special activities such as physical education andlibrary. If the teacher was absent or there were unforeseen events (e.g., firedrill), the observation was rescheduled. In all cases, research observersreported that the videotaped classroom observation was representative ofthe informal observations conducted throughout the school year. All-dayclasses were observed only in the morning following the recommendationsof teachers and school staff. On the basis of researchers’ preliminary

observations of all-day classes, during the afternoons, children spent sub-stantial time napping, snacking, and in free-play activities.

Two high-quality digital video cameras (Panasonic Model PV-DV102Dand Sony Model DCR-TRV17) were used to capture the classroom activ-ities. One was set on a tripod and located so as to capture as much of theclassroom as possible. The other camera was hand held by an observer ina corner of the classroom to capture multiple groups and to follow partic-ipating children if they wandered out of range of the stationary camera. Forsome classrooms, a third camera was used. All cameras had high-qualitymicrophones that successfully captured the teachers’ and students’ voices.Observers also recorded detailed field notes including descriptions of theparticipating children (clothing, distinctive hair styles), which were used tosupplement and confirm the video and audio recording during coding.

Videos were coded using the Noldus Observer Pro system (NoldusInformation Technology, 2001), which permits direct coding of video (seeFigure 1). All videotapes for each classroom were viewed, and the tapeproviding the most complete information was selected for coding. These

Figure 1. A screenshot of the Noldus Observer Pro work space. Note the video on the right with video controls,the coded states on the upper left, and the available codes on the lower left. From “Suzanne and Erin onSidewalk.mpg [Video],” by A. Spink (Producer), 2002, Ede, the Netherlands: Noldus Information Technology.Copyright 2002 by Noldus Information Technology. Reprinted with permission.

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videos were viewed repeatedly as they were coded. Coders utilized infor-mation from the other videos and field notes as needed to identify specificstudent and teacher activities. Only the time that the children were in theclassroom was coded. For example, recess outside was not coded. Relevantexcerpts from the coding manual, including a list of the language artsactivities, are provided in Appendix A; a screen shot of the software isprovided in Figure 1.

The coding scheme tracks the amount of time, in minutes:seconds, thatteachers and participating students spend in both academic and nonaca-demic activities. Language–literacy, math, science, art, play, and musiccompose the main instructional areas. Noninstructional codes include ritual(e.g., pledge of allegiance), transition (e.g., waiting in line to go to recess),and orient–organize (e.g., teacher explaining the various center activities).In order to be coded, any activity must have lasted at least 15 s. Codes weredesigned to be used longitudinally as participating students were followedlongitudinally through their transition to first grade.

Intercoder reliability was computed by the Noldus software by compar-ing time and activity for the same classroom videotape coded by twodifferent researchers for 25% of the tapes selected at random. For eachcomparison, reliability exceeded 85% and ranged from 86% to 92%.

A key advantage of this system is that activities may be coded for eachindividual student. Students in the same classroom experience differentamounts and types of activities, and this difference is recorded. Thus, thereis student-level instruction with unique amounts and types of instructionfor each student, and there is classroom-level instruction, in which all ofthe students in the classroom share the same amount and type of instruc-tion. So, for example, 1 target student (Student A) might participate in asmall-group activity with the teacher focusing on learning letters, whileanother target student (Student B), in the same classroom at the same time,is reading a book quietly to herself. In this case, students are participatingin student-level instructional activities. Student A is participating in aTCM, code-focused, student-level activity, and Student B is participatingin a CM, meaning-focused, student-level activity. If, during circle time, awhole-class activity, the teacher discusses the meaning of the word of theday, then that is a TCM, meaning-focused, classroom-level activity; all ofthe students, including the 2 target students, are participating in the sameamount and type of instruction at the same time. The dimensions ofinstruction are described further in the next section. Selected excerpts fromthe coding manual are included in Appendix A. Actions of the primary andassistant teachers and aides were coded separately. Generally, the primaryteacher provided the classroom-level instruction, whereas the assistantteachers and aids helped during small-group activities. Preliminary analy-ses revealed that activities conducted by the primary teacher or the assistantteacher did not have significantly different effects on children’s learningand so both were considered teachers in the analyses.

Classroom Variables

Instruction. For every class, the amount of each classroom-level andstudent-level instructional activity was identified and coded using thedimensions of instruction—explicit versus implicit, TM versus TCM ver-sus CM, and meaning focused versus code focused—and placed in theirappropriate sector (see Table 1).

Instruction variables, representing minutes per day, were computed byadding the amounts of time (in minutes) spent in each sector (see Table 2).Negligible amounts of TM, explicit meaning-focused, student-level in-struction were observed and so TM and TCM amounts were summed.

For alphabet and letter–word outcomes, there are four classroom-levelvariables and three student-level variables (see Table 1) expressed inminutes per day. Descriptive statistics are provided in Table 2. For vocab-ulary, there are four classroom-level variables and five student-level vari-ables. Except for CM, implicit meaning-focused activities, the variables foralphabet, letter–word, and vocabulary are the same and differ only inwhether they are implicit or explicit for the specific outcome of interest. Inother words, activities that are explicit for vocabulary are implicit for

alphabet and letter–word and vice versa. To simplify the variable names,we used shorter sector names so that each sector has the same name,regardless of which outcome is the one of interest, keeping in mind thatexplicit and implicit varies for our decoding and vocabulary outcomes.Sector labels are provided in Table 1 and include both classroom andstudent levels of play—TCM code focused, CM code focused, TM mean-ing focused, TCM meaning focused, CM code focused, CM meaningfocused, and CM meaning focused. Note that for alphabet and letter–wordrecognition, CM meaning-focused and CM play are summed (CM implicitmeaning focused), whereas for vocabulary, they are separate variables(play is implicit vocabulary).

Type of classroom, teacher, and home variables. A variable, HeadStart–state, was created to account for the effect of enrollment in apreschool intervention program for children at risk of underachievement.Students in the three Head Start–state classrooms were coded 1; students inall other classrooms were coded 0 (Cohen & Cohen, 1983). Teacher andparent variables were created on the basis of information from theirrespective questionnaires and included teachers’ years of experience andeducation as well as parents’ years of education.

Results

Analytic Strategies

Hierarchical linear modeling (HLM; Version 6.0; Raudenbush& Bryk, 2002) was used to control for the nested nature of the data(i.e., students are nested in classrooms). The effects of instructionmay be misestimated if the shared variance among children whoshare the same teacher and classroom environment is not consid-ered. Although classrooms were nested in teachers (e.g., someteachers taught a morning and an afternoon class), three-levelmodels with students nested in classrooms nested in teachersrevealed no significant variance at the level of the teacher, so moreparsimonious two-level models were used except to test specificteacher-level variables (e.g., years of experience). Student vari-ables (e.g., fall score, small group, and individual instruction),including Student-Level Instruction � Child interaction terms

Table 2Descriptive Statistics (Minutes per Day) for Classroom- andStudent-Level Instruction Variables

Variable M SD Minimum Maximum

Classroom level

TCM–code focused 2.91 3.83 0.00 15.00TM–meaning focused 0.57 1.65 0.00 7.35TCM–meaning focused 8.90 7.69 0.00 30.68CM–meaning focused 0.16 0.72 0.00 3.93CM–meaning-focused play 0.48 1.53 0.00 6.18

Student level

TCM–code focused 0.07 0.58 0.00 6.35TM–TCM meaning focused 0.89 6.11 0.00 65.02CM–code focused 0.38 1.75 0.00 17.57CM–meaning focused 0.21 0.94 0.00 7.57CM–meaning-focused play 11.62 15.00 0.00 66.20

Note. CM meaning focused and CM meaning-focused play are summedto create CM implicit decoding. TCM � teacher–child managed; TM �teacher managed; CM � child managed.

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(e.g., Fall Letter–Word Score � TCM, Code-Focused, Student-Level Variables) were entered at Level 1, and classroom variables(e.g., classroom-level instruction) were entered at Level 2. InHLM, interactions can be modeled between Levels 1 and 2 (e.g.,�21 . . . n[classroom instruction variables]j). Nonsignificant vari-ables were trimmed to create more parsimonious models. A modelwas built for each child outcome—alphabet, letter–word recogni-tion, and vocabulary. A model for letter–word recognition, as anexemplar, and additional information on interpreting HLM resultsare provided in Appendix B.

The outcomes represent growth in scores (i.e., spring scorecontrolling for fall score). All continuous variables were centeredat the grand mean for the sample. Thus, coefficient values repre-sent the effect of variable values above or below the mean for thesample. In the exemplar model (see Appendix B), �00, the meanspring letter–word recognition, is the fitted score for a child withtypical fall scores (i.e., the child’s score falls at the mean for thesample), who is not enrolled in either a Head Start or state-fundedprogram and who receives typical amounts of instruction. Exceptfor the instruction variables and fall score, nonsignificant variableswere trimmed to create more parsimonious models.

On average, the preschoolers in this study exhibited age-appropriate gains in alphabet, letter–word, and vocabulary skills(see Table 3). Children who began the year with stronger fallscores generally demonstrated greater growth in alphabet, letter–word, and vocabulary skills, whereas children who began the yearwith weaker scores demonstrated less skill growth (see Tables 4, 5,and 6). Mother’s education and whether children attended a HeadStart classroom had no systematic relation with any of the childoutcomes. The child outcomes were positively correlated (seeTable 7), with alphabet and letter–word most strongly positivelycorrelated with each other.

In this study, we asked (a) what is the nature of and variation inamounts and types of language and literacy-related activities ob-served in these preschool classrooms? (b) In what ways are theseactivities related to growth in preschoolers’ alphabet, letter–wordrecognition, and vocabulary growth, and is there indication ofspecificity of learning? In other words, do meaning-focused activ-ities tend to predict vocabulary rather than alphabet or letter–wordrecognition, and do emergent code-focused activities tend to pre-dict alphabet and letter–word but not vocabulary growth? and (c)Are there Child � Instruction interactions? We discuss our find-ings for each question below.

Nature and Variation in Preschool Language, Literacy,and Other Activities

Overall, our hypothesis regarding amounts of language andliteracy activity was supported. Appreciable amounts of time werespent in language and literacy activities, including play, relative toother instruction and noninstructional activities (see Figure 2, top).However, there was important variability among classrooms. Onaverage, children spent almost 15 min in language and literacyactivities and another 12 min in CM meaning-focused play, whichrepresents fully 30% of the observed classroom time. However, theamount of language and literacy ranged from 0 to 81 min acrossclassrooms. On average, about 16 min were spent in transition,which includes lining up to go outside or to the bathroom, chang-ing activities, and so forth. About 15 min were spent listening tothe teacher explain an activity, talk about what was going tohappen throughout the day or week, establish class rules, and soforth, which all fall within the code of orient–organize. Generally,about 12 min were spent in art-related activities, another 5 min inritual (pledge of allegiance, etc.), and 4 min in music. Much lesstime was spent in science and other activities (health related, grossand fine motor, etc.).

A closer look at amounts of language and literacy activities (seeFigure 2, bottom) revealed that most of the activities weremeaning-focused activities. Excluding CM meaning-focused play,most of the language and literacy activities were TCM. Only a verysmall proportion of the instructional time was solely TM. Indeed,the mean time for TM meaning-focused activities was only 0.57min during whole-class activities (range � 0.00–7.35) and evenless during small groups (0.02 min; range � 0.00–2.62 min). Mostof the TCM activities occurred within a whole-class (i.e.,classroom-level) context, whereas most of the CM activities oc-curred within a small-group–individual (i.e., student-level)context.

Classroom-level instruction (all of the children in the class aredoing the same thing at the same time) consisted primarily of TCMmeaning-focused activities (9.5 min per day; see Figure 3, top). Ingeneral, teachers spent about 4 min per day reading aloud withstudents (less than 1 min of this time was without teacher–childinteraction), 3 min in discussion with students, 1.5 min sharing,with the remaining time, about 1 min, split among vocabulary,comprehension, concepts of print, and other language arts activi-ties. Again, there was substantial variability among classrooms.

Table 3Fall and Spring Descriptive Statistics for Student Outcomes

Student outcome

Fall Spring

M SD Range M SD Range

Alphabet naming 11.21 8.19 0–26 15.79 8.13 0–26Letter–word recognition W 334.80 25.08 270–400 350.27 31.98 130–464Letter–word standard score 118.00 21.00 71–191 118.00 17.00 79–193Vocabulary W 466.59 15.79 374–502 472.82 13.36 417–506Vocabulary standard score 112.00 12.00 67–141 112.00 12.00 63–148

Note. Standard score test sample mean � 100 (SD � 15).

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For example, time spent on vocabulary activities ranged from 0 to4 min, although the mean for the sample was about 8 s per day.

TCM, code-focused, classroom-level activities accounted forless than 3 min per day of class time, on average (see Figure 3,bottom). Of this time, about 1 min 10 s per day was spent onphonological awareness activities such as rhyming, elision, andblending. Forty seconds were spent on alphabet activities, with anadditional 50 s on letter–sound correspondence activities. About10 s per day, on average, were spent on spelling activities. Heretoo, classrooms differed in, for example, time spent in phonolog-ical awareness activities varying from 0 to 10 min and time onalphabet activities ranging from 0 min to about 5 min.

Time in CM, meaning-focused, classroom-level activitiesranged from 0 to 4 min (M � 9 s), and all of this time was spentin independent emergent reading activities. For example, the stu-dents in the class selected a book from the classroom library andread it (for most, this was emergent reading; Sulzby, 1985) orlooked at the pictures. There was some CM meaning-focusedplay–classroom-level activity (0.5 min per day, range � 0–6 minper day). There were no observed CM, code-focused, classroom-level activities (e.g., phonics worksheets).

Student-level instruction accounted for a smaller proportion ofthe time spent in language and literacy instruction, but this variedsubstantially among classrooms. Most of this time was comprisedprimarily of CM meaning-focused play (11.3 min per day, range �0.0–66.2). Much less time was spent on TCM meaning-focused

activities (see Figure 3, bottom), but, again, there was variability inamount across classrooms (M � 0.88 min, range � 0–65 min perday). Of this time, almost half (46 s) was spent in small-groupsharing time. A generally negligible amount of time was spent onTCM code-focused activities (M � 0.07 min; see Figure 3, bot-tom), but this varied across classrooms ranging from 0 min to morethan 6 min per day. Most of this time was spent in alphabetactivities and included writing the letters of the alphabet. CMcode-focused activities (M � 0.37 min, range � 0.0–17.5 min)included alphabet and handwriting activities. CM meaning-focused activities (M � 0.21 min, range � 0.0–7.6 min per day),including independent emergent reading activities, split evenlybetween individual student and small-group contexts; each contextranged from 0 min to more than 4 min per day across classrooms.

Children within the same classroom experienced widely differ-ent amounts and types of language and literacy activities. Forexample, in one classroom with 3 target children, Child A spentmore than 17 min in CM, code-focused, student-level activities;almost 2 min in CM meaning-focused play; and just over 3 min inTCM code-focused activities. In contrast, Child B spent just 3 minin CM, code-focused, student-level activities; 16 min in CMmeaning-focused play; and more than 6 min in TCM code-focusedactivities. This was while, at the same time, Child C spent 0 minin CM code-focused activities, 3 min in CM meaning-focusedplay, and 0 min in TCM code-focused activities (most of the timewas spent in art activities). It is interesting to note that Child C

Table 4Hierarchical Linear Modeling Results for Alphabet Naming

Fixed effect Coefficient SE t(df) p

For intercept, �0

Mean spring alphabet raw score, �00 15.72 0.35 45.28(28) .000Overall amount (hours/week), �01 0.12 0.04 3.07 .005TCM–code focused–classroom level, �02 0.20 0.07 2.92 .007TCM–meaning focused–classroom level, �03 �0.08 0.06 �1.42 .168TM–meaning focused–classroom level, �04 �0.0006 0.12 �0.005 .996CM–implicit code focused–classroom level, �05 0.03 0.13 0.20 .841

For fall letter–word recognition score, �1

Effect, �10 0.11 0.03 3.380(135) .001For fall vocabulary score, �2

Effect, �20 0.005 0.05 0.116(135) .908For fall alphabet score, �3

Effect, �30 0.55 0.07 7.72(135) .000Effect of Overall Amount � Alphabet, �31 �0.008 0.003 �2.97 .004Effect of TCM–code focused–classroom level, �32 �0.017 0.007 �2.33 .021

For TCM–code focused–student level, �4

Effect, �40 2.17 0.40 5.47(135) .000For TM–TCM–meaning focused–student level, �5

Effect, �50 0.01 0.03 0.393(135) .694For CM–code focused–student level, �6

Effect, �60 �0.09 0.14 �0.69(135) .489For CM–implicit code focused–student level, �7

Effect, �70 �0.01 0.02 �0.79(135) .433

Random effectsVariance

component df �2 p

Intercept, u0 0.01 28 28.60 .433Level 1, r 15.78

Note. Deviance � 839.61. TCM � teacher–child managed; TM � teacher managed; CM � child managed;u � classroom-level error; r � student-level error.

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began the school year knowing all the letters in the alphabet,whereas Child A and Child B knew only 1 and 7 letters, respec-tively. By the end of the year, they knew 19 and 18 letters,respectively.

Correlations Among Instructional Strategies

There was some systematic pattern among the instructionalstrategies. None of the student-level instruction variables werecorrelated, with one notable exception. Teachers who spent moretime in TM, meaning-focused, student-level activities also tendedto provide more time in CM, meaning-focused play, student-levelactivities (r � .43, p � .011). At the classroom level, teachers whoprovided more time in TCM, meaning-focused, classroom-levelactivities also provided more time in CM, meaning-focused,classroom-level activities (r � .46, p � .001). Plus, teachers whoprovided more time in TCM, code-focused, classroom-level activ-ities also tended to provide more time in CM, code-focused,classroom-level activities.

Associations between classroom- and student-level instructionvariables were computed using HLM, with each student-levelinstruction type as the outcome and each classroom-level instruc-tion type as a predictor. Because this required 30 separate models,a Bonferroni correction was applied only to these analyses, andalpha was set at .001 (http://home.clara.net/sisa/bonfer.htm). Re-

sults revealed that teachers who provided more time in CM,meaning-focused, student-level activities also provided more timein CM, meaning-focused, classroom-level activities (�01 � .605,p � .001).

There did not appear to be any trade-off between code- andmeaning-focused activities at either the student or classroom level.For example, teachers who provided children with more time inmeaning-focused activities were no more or less likely to providemore time in code-focused activities.

Overall Amount of Preschool

Children could attend either half- or whole-day classrooms andcould attend anywhere from 2 to 5 days per week on a regularbasis. Thus, the overall amount of time preschool children couldattend varied by classroom from 6 to 30 hr per week, with a meanof 15 hr per week. The number of hours per week children attendedpreschool related to both alphabet and letter–word recognitionscore growth but not vocabulary growth (see Tables 4, 5, and 6 andFigures 4, top, and 5, top). Generally, children who attendedpreschool more hours per week achieved stronger alphabet andletter–word score growth than did children who attended preschoolfor fewer hours per week. There was no significant relation be-tween hours per week attended and vocabulary score growth.Generally, however, children with weaker fall vocabulary scores

Table 5Hierarchical Linear Modeling Results for Letter–Word Recognition

Fixed effect Coefficient SE t(df) p

For intercept, �0

Mean spring letter–word W, �00 345.64 2.08 165.93(28) .000Overall amount (hours/week), �01 0.44 0.11 4.45 .000TCM–code focused–classroom level, �02 0.38 0.38 1.01 .324TCM–meaning focused–classroom level, �04 �0.15 0.25 �0.60 .555TM–meaning focused–classroom level, �03 2.08 1.11 1.87 .08CM–implicit code focused–classroom level, �03 �0.13 1.14 �0.12 .910

For fall letter–word recognition W score, �1

Effect, �10 0.55 0.08 6.45(137) .000Effect of TCM–Code Focused–Classroom Level � Fall Letter–Word Score, �11 �0.03 0.01 �2.20 .029Effect of TCM–Meaning Focused–Classroom Level � Fall Letter–Word Score, �12 0.02 0.009 2.41 .018

For fall vocabulary score, �2

Effect, �20 0.27 0.14 2.02(137) .045Effect of Overall Amount (hours/week) � Fall Vocabulary Score, �21 �0.02 0.009 �2.43 .017

For fall alphabet score, �3

Effect, �30 1.08 0.30 3.80(137) .000For TCM–code focused–student level, �4

Effect, �40 3.70 1.67 2.22(137) .028For TM–TCM–meaning focused–student level, �5

Effect, �50 �0.28 0.09 �3.05(137) .003For CM–code focused–student level, �6

Effect, �60 0.80 0.86 0.93(137) .355For CM–implicit code focused–student level, �7

Effect, �70 �0.03 0.07 �0.49(137) .622For boy, �8

Effect, �80 7.64 3.22 2.38(139) .019

Random effect Variance df �2 p

Intercept, u0 0.12 28 14.77 .50Level 1, r 390.53

Note. Deviance � 1,356. TCM � teacher–child managed; TM � teacher managed; CM � child managed; u � classroom-level error; r � student-levelerror.

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were more likely to spend more hours per week attending pre-school than were children with stronger fall vocabulary scores(�01 � –.34, p � .001).

Relations Among Instructional Strategies and ChildOutcomes

The language and literacy activities that we observed in theseclassrooms had a systematic and significant relation with stu-dents’ growth in alphabet knowledge, letter–word recognition,

and vocabulary skills. Moreover, the relations were specific. Inall cases, when there was a main effect of instruction (theinstruction had an effect on student growth regardless of childcharacteristics), explicit code-focused activities positively pre-dicted alphabet and letter–word recognition, and explicitmeaning-focused activities positively predicted vocabulary. Forexample, children who spent more time in classroom- andstudent-level TCM code-focused instruction, on average,learned more letters of the alphabet than did children who spent

Table 6Hierarchical Linear Modeling Results for Spring Vocabulary

Fixed effect Coefficient SE t(df) p

For intercept, �0

Mean spring vocabulary W score, �00 473.04 0.94 501.88(27) .000Overall amount (hours/week), �01 �0.02 0.10 �0.15 .882TCM–code focused–classroom level, �02 0.12 0.18 0.70 .497TCM–meaning focused–classroom level, �03 0.13 0.11 1.23 .228TM–meaning focused–classroom level, �04 0.79 0.35 2.27 .031CM–meaning focused–classroom level, �05 2.05 0.93 2.21 .036CM–meaning-focused play–classroom level, �05 0.60 0.46 1.29 .210

For child age, �1

Effect, �10 3.17 1.65 1.91(33) .063For fall vocabulary score, �2

Effect, �20 0.43 0.035 12.10(137) .000Effect of TCM–Code Focused–Classroom Level � Fall Vocabulary, �21 0.03 0.007 4.15 .000Effect of TCM–Meaning Focused–Classroom Level � Fall Vocabulary, �22 �0.01 0.005 �2.72 .008Effect of TCM–Meaning-Focused Play–Classroom Level � Fall Vocabulary, �23 �0.09 0.03 �3.54 .001

For fall alphabet score, �3

Effect, �30 0.23 0.10 2.45(137) .015For TCM–code focused–student level, �4

Effect �40 �1.26 0.76 �1.64(137) .102For TM–TCM–meaning focused–student level, �5

Effect, �50 0.06 0.06 0.89(137) .377For CM–code focused–student level, �6

Effect, �60 �0.10 0.30 �0.33(138) .742For CM–meaning focused–student level, �7

Effect, �70 �0.56 0.52 �1.07(137) .285For CM–meaning-focused play–student level, �8

Effect, �80 �0.02 0.04 0.48(137) .631

Random effect Variance df �2 p

Intercept, u0 10.69 25 37.34 .053Child age, u1 0.73 31 21.49 .50Level 1, r 66.98

Note. Deviance � 1,102.55. TCM � teacher–child managed; TM � teacher managed; CM � child managed; u � classroom-level error; r � student-levelerror.

Table 7Correlations Among Child Outcome Variables

Variable 1 2 3 4 5 6

1. Letter–word identification W fall — .314** .837** .692** .345** .752**2. Vocabulary W fall — .277** .224** .654** .193*3. Alphabet raw score fall — .680** .377** .806**4. Letter–word identification W spring — .358** .696**5. Vocabulary W spring — .287**6. Alphabet raw score spring —

* p � .05. ** p � .01.

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less time in these activities (see Table 4). For letter–wordrecognition, children who spent more time in TCM, code-focused, student-level activities demonstrated greater growth inscores than did children who spent less time in these activities(see Table 5).

For vocabulary, children who spent more time in TCM,meaning-focused, classroom-level activities and less time in TCM,code-focused, student-level activities exhibited greater vocabularygrowth than did children who spent less time in the meaning-focused activities and more time in the code-focused activities.The effect size for amount (minutes/day) of TCM, code-focused,student-level instruction was negligible (see Table 8). The effectsize for amount of TCM, meaning-focused, classroom level in-struction was greater for children with weaker fall vocabulary

skills than it was for children with stronger fall vocabulary skills(see Figure 6 and Table 8).

Child � Instruction Interactions

Although there was evidence of specificity of learning in themain effects, our hypothesis regarding specificity of instructionas it related to child outcomes was not entirely supported. Aswe anticipated, there were Child � Instruction interactions; theeffect of some instructional strategies depended on children’sskills at the beginning of the year. Because of these interactions,generally, the specificity of instruction was less apparent forchildren with stronger fall language and literacy skills. Forexample, children with stronger fall vocabulary scores demon-

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strated greater vocabulary growth when they spent more timein TCM meaning-focused activities and more time in TCMcode-focused activities. In contrast, for children withweaker fall vocabulary scores, TCM meaning-focused activi-ties, but not TCM code-focused activities, were related toincreases in vocabulary growth. Similar findings held for chil-dren’s letter–word recognition skill growth. The details areprovided below.

For each of our outcomes—alphabet, letter–word recognition,and vocabulary—there were Child � Instruction interactions. Be-cause these Child � Instruction interactions differed for each ofthe outcomes, we present the results for each model separatelybelow.

Alphabet

Children in classrooms that spent more time in TCM, code-focused, classroom-level activities achieved stronger spring alpha-bet scores, on average, but these effects were greater for studentswho knew fewer letters in the fall (e.g., 4) compared with childrenwho knew more letters (e.g., 18; see Table 4 and Figure 4, bottom).TCM, code-focused, student-level activities had a greater effectsize (d � .28 for 1 min) than its classroom-level counterpart. Forevery 10 min per day above the mean of TCM, code-focused,student-level activities students received, their alphabet score in-creased by almost 3 letters by spring, and, on average, this was thecase for all students regardless of their fall alphabet score.

Letter–Word Recognition

Students who began the preschool year with lower letter–wordrecognition scores tended to demonstrate greater letter–wordgrowth in classrooms that spent more time in TCM, code-focused,classroom-level activities, whereas students with higher letter–word recognition scores exhibited less growth (see Table 5 andFigure 5, middle). The opposite pattern was observed for amountof time spent in TCM, meaning-focused, classroom-level activities(see Table 5, bottom). Students with lower letter–word recognitionscores in the fall demonstrated less letter–word growth in class-rooms in which a greater amount of time was spent in TCMmeaning-focused activities. In contrast, students with higher fallletter–word recognition scores demonstrated greater letter–wordrecognition growth when they participated in classrooms withgreater amounts of TCM, meaning-focused, classroom-levelactivities.

Vocabulary

Although classroom-level activities systematically related tostudents’ vocabulary growth, student-level instructional activitieshad no significant relation. On average, students in classrooms thatspent more time in TM, TCM, and CM, meaning-focused,classroom-level activities as well as CM, meaning-focused play,classroom-level activities showed stronger vocabulary scoregrowth than did students in classrooms that spent less time in suchactivities, but there were Child � Instruction interactions (seeTable 6 and Figure 6). Children with weaker fall vocabulary scoresdemonstrated less vocabulary growth when they spent more timein TCM, code-focused, classroom-level activities, whereas stu-dents with stronger fall vocabulary scores demonstrated greater

Figure 3 (opposite). Top: Mean amounts of time in specific activities for teacher–child-managed, meaning-focused (TCM–MF) activities. Bottom: Mean amounts of time in specific activities for TCM code-focused (CF)activities. Classroom-level activities are shown in black, and student-level activities are shown in white. COP �concepts of print.

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Figure 4. Predicting spring alphabet knowledge. Top: Student Fall Al-phabet � Overall Amount (hours per week) interaction effect on fittedspring alphabet scores. Bottom: Student Fall Alphabet � TCM, Code-Focused, Classroom-Level Amount (minutes per day) interaction effect onspring alphabet scores. Higher fall alphabet scores (boldface line) fall at the75th percentile for the sample (about 18 letters), whereas lower fallalphabet scores fall at the 25th percentile of the sample (about 4 letters). Allother variables are held constant at their sample mean. TCM � teacher–child managed; CF � code focused; cl � classroom level.

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vocabulary growth when they spent more time in such activities(see Table 6 and Figure 6, top). In general, all students achievedgreater vocabulary growth in classrooms that spent more time inCM and TM, meaning-focused, classroom-level activities, regard-less of fall vocabulary score. More time in TCM, meaning-focused, classroom-level activities (see Figure 6, middle) and CM,meaning-focused play, classroom-level activities (see Figure 6,bottom) was related to greater student vocabulary growth, butstudents with lower fall vocabulary scores demonstrated greatergrowth in classrooms with more time in such activities than didstudents with higher fall vocabulary scores. Overall, students withlower fall vocabulary scores exhibited greater vocabulary growthonly when they experienced more time in TCM, TM, and CM,meaning-focused, classroom-level activities, including play,whereas students with higher vocabulary scores demonstratedstronger vocabulary growth, with more time spent in TCM code-focused activities and/or TCM, TM, and CM, meaning-focused,classroom-level activities.

Discussion

This study examined the nature of specific preschool activitiesin which teachers and children engaged and the relation of theseactivities to preschoolers’ alphabet, letter–word recognition, andvocabulary growth. Our discussion focuses on two key findings:(a) There was substantial variability in the amounts and types oflanguage and literacy activities children experienced, and (b) theseactivities systematically related to preschoolers’ language andemergent literacy skills in a complex, interactive fashion.

Variability in Amount and Type of Instruction

Although, overall, these preschool classrooms would be judgedhigh quality on the basis of the teachers’ credentials and years ofexperience, teacher–child ratios, physical facilities, and certifica-tion, there was substantial variability across and within classroomsin the amount and type of language and literacy learning oppor-tunities offered to students. One class spent almost 90 min inlanguage and literacy activities, including play, whereas anotherspent only 4 min. Thus, children, even in the same school district,had widely different preschool language and literacy experiences.

Classrooms met anywhere from 2 to 5 days per week and from3 to 6 hr per day. Children who attended preschool for more hoursper week demonstrated stronger alphabet and letter–word growth,overall, than did children who attended for less time per week.

spring letter–word recognition scores. Higher fall vocabulary scores (bold-face line) fall at the 75th percentile for the sample, whereas lower fallvocabulary scores fall at the 25th percentile of the sample. All othervariables are centered at their sample mean. Middle: Student Fall Letter–Word Recognition Score � Amount (minutes per day) of TM, Code-Focused, Classroom-Level Instruction. Bottom: Student Fall Letter–WordRecognition Score � Amount (minutes per day) of TM, Meaning-Focused,Classroom-Level Instruction. Higher fall letter–word recognition scores(boldface line) fall at the 75th percentile for the sample, whereas lower fallletter–word recognition scores fall at the 25th percentile of the sample. Allother variables are centered at their sample mean. TM � teacher managed;TCM � teacher–child managed; CF � code focused; cl � classroom level.

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Figure 5. Predicting spring letter–word recognition. Top: Student FallVocabulary � Overall Amount (hours per week) interaction effect on fitted

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Moreover, this difference was stronger for students who knewfewer letters and had weaker vocabulary scores at the beginning ofthe school year than it was for students who began the school yearwith stronger skills. This finding supports research demonstratingthat greater amounts of time per week in high-quality preschooloverall (i.e., intensity; Nelson et al., 2003) is related to strongeroutcomes for preschoolers.

In a few classrooms, there was virtually no focus on languageand emergent literacy, either explicit or implicit, whereas in otherclasses, the entire day was filled with meaningful opportunities forchildren to engage with written text and oral language. It isinteresting to note that there was also appreciable variability inlanguage and literacy activities, including play, within classrooms.Children in the same classroom at the same time were experienc-ing different learning opportunities. Some children experiencedpredominately nonliteracy learning opportunities (e.g., art or tran-sition), whereas others spent substantial amounts of time in explicitand implicit literacy activities. These findings are important be-cause language and literacy activities related to children’s vocab-ulary, alphabet, and decoding skill growth. This kind of variabilityhas been observed in other preschool classrooms (NICHDECCRN, 2003; Whitehurst, Epstein, et al., 1994).

Multiple Dimensions of Instruction and Student Outcomes

The types of language and literacy activities preschoolers expe-rienced, when viewed multidimensionally, related to their lan-guage and literacy skill growth.

Meaning Focused Versus Code Focused and ExplicitVersus Implicit

Overall, explicit code-focused activities predicted alphabet andletter–word growth, whereas explicit meaning-focused activitiespredicted vocabulary growth. This finding directly parallels find-ings for parent and home literacy involvement in children’s liter-acy development (Senechal & LeFevre, 2002). Formal or explicitcode-focused parent–child interactions are related to children’sgrowth in emergent reading, whereas informal or implicit code-focused (i.e., meaning-focused) interactions related to growth invocabulary and language skills.

However, the specificity was most evident for children whostarted the school year with weaker skills for whom only amountof explicit code-focused activities positively related to growth intheir letter–word skills. For children with stronger fall letter–wordskills, both code-focused and meaning-focused activities contrib-uted to their letter–word growth. A similar pattern was observedfor vocabulary—only meaning-focused activities positively pre-dicted vocabulary growth for children with weaker fall vocabularyskills, whereas both code- and meaning-focused activities relatedto vocabulary growth for children with stronger fall scores. Thesefindings may offer one possible reason that reading and vocabularyskills are observed to be highly stable, especially after kindergarten(Hart & Risley, 1995; Lonigan, Burgess, & Anthony, 2000). Chil-dren with stronger language and emergent literacy skills may havemore opportunities to learn during both code- and meaning-focused activities (Tuyay, Jennings, & Dixon, 1995), which maycontribute to the Matthew effect (Stanovich, 1986). The practicalimplication is that children with weaker skills need more, not

Table 8Summary of Effects of Amount and Type of Instruction on Student Spring Outcomes

Child fall score statusoutcome

AlphabetLetter–wordrecognition Vocabulary

Lowerfall

Higherfall

Lowerfall

Higherfall

Lowerfall

Higherfall

Classroom level (minutes/day)

TCM–code focused � 0 TCM–meaning focused � TM–meaning focused .06 .06CM–meaning focused .16 .16CM–meaning focused play 0

Student level (minutes/day)

TCM–code focused .28 .28 .12 .12TM–TCM–meaning focused �.008 �.008CM–code focusedCM–meaning focusedCM–MF play

Note. Exact effect size depends on the amount of instruction and, when there is an interaction, the students’fall scores. Unless there is a significant Child � Instruction interaction, effect sizes are for 1 min per day, abovethe sample mean for students whose fall scores lie at the mean for the sample. For Child � Instruction interactioneffects, indicates generally positive effect, indicates relatively more positive effect, � indicates generallynegative effect, and 0 indicates no significant effect for amounts of instruction or overall amount above thesample mean. Please refer to the interaction graphs (see Figures 4–6) for more precise estimates. All effects aresignificant at p � .05. TCM � teacher–child managed; TM � teacher managed; CM � child managed.

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fewer, opportunities to gain critical language and emergent literacyskills in preschool through explicit targeted experiences.

Play, an implicit meaning-focused activity, positively contrib-uted to children’s vocabulary growth but was not associated withthe code-focused outcomes, alphabet or letter–word recognition.This finding runs counter to claims that play directly supportschildren’s emergent literacy (Rowe, 1988) if language and emer-gent literacy are considered two discrete constructs (Lonigan et al.,1999; NICHD ECCRN, 2005; Senechal & LeFevre, 2002). Theamount of time children spent in play did predict vocabularygrowth, which makes sense as one considers the language devel-opment implications of symbolic play (Pelligrini & Galda, 1993)and peer interactions. Thus, play appears to relate to preschoolers’emergent literacy growth indirectly through its relation with vo-cabulary growth.

An intriguing finding is that the positive association betweenplay and vocabulary growth was greater for children with weakerfall vocabulary skills than it was for children with stronger vocab-ulary skills. It is possible that interactions during dramatic playwith more able peers and with the teacher may have supportedstudents’ vocabulary growth. It may also be that children withstrong fall vocabulary skills already had the core vocabulary madeavailable in the dramatic play centers, for example, whereas forchildren with weaker vocabulary skills, these experiences providedaccess to vocabulary not available to them previously throughhome or child-care literacy experiences. Another possible expla-nation may be that because the rate of vocabulary development ishighly variable among children during the preschool years (Locke,1997; Scarborough, 2001), children with weaker vocabulary skillsin the fall may have just started the documented burst of vocabu-lary development (Bates, 1999; Fenson et al., 1993; Scarborough,2001). Opportunities for play may have offered additional supportfor their vocabulary development leading to greater growth. Chil-dren with stronger fall vocabulary skills may have completed thisdevelopmental burst, and thus play had a less evident effect ontheir vocabulary growth. More research is needed.

Classroom-Level Versus Student-Level Instruction

Although student-level instruction did not relate to preschool-ers’ vocabulary growth, whole-class instruction did. Bothclassroom- and student-level instruction were positively related toalphabet and letter–word growth. Whole-class, rather than small-group–individual, meaning-focused activities may have providedmore opportunities for students to interact with peers in meaning-ful ways, offering a bridge to more complex vocabulary and syntax(Wharton-McDonald, Pressley, & Hampston, 1998), which wouldtend to support vocabulary development. It is also possible that thisfinding is an artifact of our naturalistic observational procedures.With the exception of play, most of the language and emergentliteracy instruction was classroom level, and most of this was

Higher fall vocabulary scores (boldface line) fall at the 75th percentile forthe sample, whereas lower fall vocabulary scores fall at the 25th percentileof the sample. All other variables are centered at their sample mean.TCM � teacher–child managed; CF � code focused; cl � classroom level;MF � meaning focused.

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Figure 6. Top: Predicting spring vocabulary. Student Fall VocabularyScore � Amount (minutes per day) of TCM, Code-Focused, Classroom-Level Instruction. Middle: Student Fall Vocabulary Score � Amount(minutes per day) of TCM, Meaning-Focused, Classroom-Level Instruc-tion. Bottom: Student Fall Vocabulary � Amount (minutes per day) ofChild-Managed/Meaning-Focused Play, Classroom-Level Instruction.

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meaning focused. There may not have been sufficient variability instudent-level, explicit meaning-focused instruction within class-rooms to detect effects on vocabulary.

With regard to preschoolers’ alphabet and letter–word skillgrowth, overall, student-level instruction yielded a much largereffect size, almost tenfold, for children’s alphabet and letter–wordrecognition skill growth than did whole-class instruction (seeTable 7). Moreover, although there were Child � Instructioninteractions at the classroom level, there were none at the studentlevel. Thus, instructional strategies provided in small-group–individual settings were related to greater alphabet and letter–wordskill growth for all children, regardless of their entering skill level,in contrast to whole-class activities. Small-group–individual in-struction and providing extra help to school-age children who needit are hallmarks of effective teachers (Wharton-McDonald et al.,1998), and these results appear to support these findings forpreschool-age students. It may be that small-group–individualsettings are more conducive to implementing effective instruction.In these settings, teachers who are cognizant of their students’academic strengths and weaknesses may be better able to individ-ualize instruction, targeting instructional strategies to each stu-dent’s needs, including providing more time for those who need it.

TCM, TM, and CM Instruction

TM, TCM, and CM activities were all positively associated withvocabulary growth, whereas only TCM activities were associatedwith alphabet and letter–word growth. These findings reinforcecurrent notions about the differing sources of language versusliteracy development (Geary, 1995; Snow, 1983). Language ac-quisition is universal across cultures and appears to be learnedimplicitly through interactions with others—teachers, parents, andpeers. In contrast, reading varies across cultures and must beexplicitly taught to most children. Thus, according to our findings,the active involvement of the teacher with the students was im-portant for alphabet and letter–word growth.

Limitations

There are limitations to our study and hence to our interpreta-tions. First, we videotaped only 1 day of instruction and althoughthese videotaped observations appeared to align with more fre-quent informal observations, still, they provided only a snapshot ofthe activities the preschoolers experienced. Second, we examinedthe amount and type of preschool emergent literacy activitiesmultidimensionally but did not describe how this instruction wasimplemented beyond attempting to capture the extent to whichteachers and children interacted during the activity. How theseactivities are implemented, the degree to which the teacher isorganized and clear in her or his instruction, and her or his warmthand sensitivity to students, among others, are nonetheless impor-tant predictors of child outcomes that we did not consider (NICHDECCRN, 2002, 2003, 2004) but will in future studies.

Third, the present study design does not permit strong causalinferences. We used naturally occurring variation in teachers’practices and students’ characteristics to identify the correspon-dence between classroom instruction and student outcomes. Thus,other unmeasured variables may have been responsible for theeffects we documented. For example, preschool experiences may

have had nominal effects for students who began the year withstrong vocabulary and emergent literacy skills. Rather, their par-ents and the home literacy environment provided may have beenresponsible for their language and literacy development. Addition-ally, we did not take into account nonacademic classroom practices(like organization) or child social outcomes (such as self-regulation), which, research indicates, contribute to the classroomenvironment and student outcomes (Cameron, 2004; McClelland& Morrison, 2003). Ultimately, rigorous intervention studies withrandom assignment of participants to treatment and control areneeded to make strong causal claims.

The Role of Explicit Instruction and Play in Preschool

There is a diversity of beliefs about teaching preschoolers howto read (Bowman et al., 2001; Bredekemp & Copple, 1997; Con-nor, 2002; Graue et al., 2004; Roskos & Christie, 2000; Stipek etal., 1995). Our results, along with other preschool research (Graueet al., 2004; Whitehurst, Epstein, et al., 1994), support the idea thatexplicitly teaching students letters, letter sounds, phonologicaldecoding, and phonological awareness, in conjunction with richmeaning-focused experiences, including play, may yield strongerstudent outcomes than programs that focus solely on one to theexclusion of the other. Explicit code-focused activities, in whichteachers and students work together, may be especially importantfor students with weaker literacy skills at the beginning of the year.On the basis of our observations of the classrooms in this study,these explicit code-focused activities were consistently deliveredin interactive and supporting ways. No drilling of students’ skillsor long time spent completing worksheets was observed. Rather,alphabet and letter–sound activities, for example, were embeddedin songs, craft activities, and games. Opportunities to practicethese skills were provided in dramatic play centers (e.g., readingmenus or writing a prescription when pretending to be a doctor),although, our results suggest that, relative to emergent readingdevelopment, the greater potential benefit to students providedthrough play is in vocabulary development.

Explicit meaning-focused activities contributed significantly tostudents’ decoding and vocabulary growth as well. Thus, readingto children, sharing, discussion, and other meaning-focused activ-ities found in high-quality preschool programs should not beabandoned in favor of an exclusive focus on code-relatedactivities.

Our results reveal that the impact of selected patterns of instruc-tion—particularly when provided in whole-class settings—maydepend on preschoolers’ entering vocabulary and emergent read-ing skills. Thus, designing effective instruction for all children,particularly in light of the substantial heterogeneity across andwithin preschool classrooms, may prove challenging. One sugges-tion for practice may be to provide explicit and implicit meaning-focused activities primarily in whole-class settings, in which theirimpact appears to be greater on students’ vocabulary growth. Incontrast, another suggestion is to provide emergent code-focusedactivities in small-group settings in which they can be tailored foreach student on the basis of their vocabulary and emergent reading.

Additionally, no CM code-focused activities related to studentoutcome growth, but TCM code-focused activities did. This sug-gests that explicit code-focused instruction might be more effec-tive when teacher and students interact with each other, whereas

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children working alone on phonics worksheets, for example,should be avoided. All of this would need to be tested. Efforts areunderway to develop appropriate literacy-based preschool curric-ula. These data were collected in classrooms that used one pre-school curriculum. Indeed, other curricula might provide alterna-tive patterns of experience for children and generate differentstudent outcomes. More research regarding the efficacy of suchefforts to improve students’ short- and long-term literacy outcomesusing randomized field trials, such as the Individualizing StudentInstruction project (Connor & Morrison, 2006), is warranted.

Research Implications

As we strive to define high-quality preschool experiences, theseresults reveal that what might be considered high quality for atypically developing child or a preschooler with stronger vocabu-lary and decoding skills may differ substantially from a high-quality preschool experience for a preschooler at risk for under-achievement because of poverty or other risk factors. Students atrisk typically begin preschool with weaker vocabulary and emer-gent literacy skills (Hart & Risley, 1995; Snow et al., 1998).Observing preschool classrooms across multiple dimensions andmeasuring the effectiveness of preschool experiences in improvingstudents’ cognitive and social outcome growth may offer moreprecise metrics of quality than a focus solely on more globalcurriculum-level measures (e.g., teacher directed vs. child cen-tered) and resources (staff:child ratios).

The video-coded classroom observation methods utilized in thisstudy demonstrate that systematic, multidimensional, and multi-level examination of classroom participants (teachers and students)and the activities in which they engage are both feasible andimportant. As our results show, children in the same classroom donot experience the same amounts and types of language andliteracy activities. This kind of analysis would not have beenpossible without new technology—both statistical (e.g., HLM)and observational (video and software). Although still expensiveand time consuming, the technology is continuing to improve.Achieving a detailed understanding of exactly what is occurring inclassrooms, rather than continuing to treat this important proximalinfluence like a “black box,” appears to be worth the time andexpense, especially given society’s real and potential investment inpreschool interventions (Gormley, Gayer, Phillips, & Dawson,2004; Sawhill, 1999) and new universal prekindergarten initiatives(e.g., Florida).

The children in this study represent a more diverse sample thanis found in many preschool studies (e.g., Conyers et al., 2003;Reynolds et al., 2004). For example, 5% of our sample attendedHead Start classrooms and the rest attended fee-for-service class-rooms, parent educational levels ranged from less than high schoolto advanced degrees, and fully 10% of the children spoke alanguage other than English at home. This should be kept in mindas these results are interpreted. A more homogenous sample (e.g.,only children enrolled in Head Start) would certainly have yieldedvery different results. Indeed, finding Child � Instruction interac-tions may have been related to having a more diverse sample. Weconsider this a strength of this study, especially as policymakerscall for universal prekindergarten and expanded preschool experi-ences for all children (Disimone, Payne, Fedoravicius, Henrich, &Finn-Stevenson, 2004; Saluja, Early, & Clifford, 2001; Sawhill,

1999; Snow et al., 1998). Preschool research that moves beyond aspecific focus on children at risk for academic underachievementoffers the opportunity to better understand how to deliver effectivepreschool instruction to all children and the underlying causalmechanism of the benefits associated with high-quality preschoolexperiences.

In summary, this study examined more closely the language andliteracy activities preschoolers experienced in their classrooms andthe relation of these experiences to their alphabet, letter–wordrecognition, and vocabulary development. Our purpose was tobegin to elucidate the underlying causal mechanisms of the clearlydocumented benefits of high-quality preschool experiences onstudents’ later academic success. Part of students’ growth in al-phabet, letter–word recognition, and vocabulary observed in thisstudy was explained by the vocabulary and early reading skillsthey brought to the classroom. These were, presumably, a result ofhome, sociocultural, and other life experiences prior to the begin-ning of the school year (Bronfenbrenner, 1986; Morrison et al.,2005). However, specific and identifiable language and literacyactivities children experienced in the observed classrooms alsopredicted alphabet, letter–word recognition, and vocabularygrowth, controlling for fall achievement and other child, teacher,and classroom characteristics. This is encouraging because howteachers and students interact and the kinds of language andliteracy experiences children encounter in preschool classroomscan be modified and improved. Designing effective preschoollanguage and literacy instruction—taking into account that theeffect of language and literacy activities are fairly specific and maydepend on each student’s skills—has the potential to improveshort-term and, potentially, long-term academic achievement forall children.

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Appendix A

Excerpts from the Pathways to Literacy Coding Manual

General Description

This coding scheme for classroom- and student-level activities is amodified form of the coding scheme used in previous studies and wasdesigned to follow children from preschool through first grade. For thisreason, some activities are described that were not observed in the pre-school classrooms in this study. Codes are hierarchical and begin withgeneral areas (activities), such as ritual, language arts, or math. For eachgeneral area, there is a list of subactivities that describe the behaviors inmore detail, such as teacher read-aloud or student independent reading. Allof these activities are considered states, that is, they have a duration and therelevant unit of analysis is the time (in minutes or seconds) that participantsspent in them. Activities may be either instructional or noninstructional.(Note that the following are excerpted. Please contact Carol McDonaldConnor for the complete coding manual.)

Classroom Versus Student Level

These activity codes can be applied to the whole class (when everyonein the class is engaged in basically the same activity—classroom-levelactivity) or to individual target children (when different children in theclass are engaged in significantly different activities; for example, theymay be in different small groups—student-level activity).

Teacher Managed (TM) Versus Teacher–Child Managed(TCM) Versus Child Managed (CM)

All instructional activities can be further specified as TM, assistant TM,TCM, or CM and also as whole class (classroom level), small group, orindividual.

TM activity. This is an activity in which the teacher (or aide) isfocusing the students’ attention, and the children are doing very littletalking. A good example would be the teacher reading aloud to the studentswithout discussion. If the teacher is encouraging the students to talk (e.g.,using questions, probing for knowledge), then this is a TCM activity (seebelow).

TCM activity. TCM instruction includes activities in which the teacheror the assistant teacher is the primary director of the children’s attention butin which children are active participants (e.g., teacher and student discus-sions surrounding a particular book). Other TCM activities include teachersreading aloud with discussion and instruction in letter–sound relations.These can be directed toward the whole class, small groups, or individualchildren.

CM activity. CM instruction includes those instructional activities inwhich the student is primarily controlling his or her focus of attention, forexample, reading independently (e.g., sustained silent reading) and com-pleting worksheets independently. These activities can be conducted insmall groups or individually. Peer activities are included under this code.However, they are considered separated in the revised version of thiscoding scheme.

Activities

Play–Free Time

Time spent engaged in activities of the students’ choice that are notspecifically literacy or other content area (e.g., math, science) focused.Typically this includes time spent in the dramatic play area, playing withblocks, building with LEGOs, playing housekeeping, and the cooperative

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peer interactions that occur during play. It is distinct from time spentlooking at or reading books (which is coded as sustained silent emergentreading), games, art, music activities, and recess (which typically occursoutside the classroom and is not coded). In all cases, these activities areCM.

Language Arts

Time spent engaged in activities that require reading, writing, orreading- and writing-related things but that are not focused on gaininginformation about another content area (science, social studies, math,drama, etc.). Remember that text is anything that can be read, includingsigns, labels, directions on the board, and so forth. Print, on the other hand,refers to printed matter such as books, newspapers, and so forth. Specificsubactivities follow.

Teacher read-aloud. The teacher reads from a picture book, a chapterbook, or magazine, and so forth; provides a book-on-tape for the class tolisten to (children are not under headphones); or shows a video wherein astory is presented and is present during the activity (otherwise it is a CMactivity). The read-aloud is done from beginning to end, without breaks todiscuss or ask questions. However, the teacher may make brief clarificationcomments (especially during a book-on-tape) or ask rhetorical questions,without really expecting a response from the children.

Teacher read-aloud–discussion combination. The teacher reads abook out loud but stops frequently (once every one or two pages) to discussor ask questions. This occurs during the reading of the book and is clearlyinteractive, with both the teacher and the children participating in readingand understanding the book.

*Think of teacher read-aloud and the teacher read-aloud–discussioncombination as two different styles of reading a book. Some teachers liketo go from beginning to end, and others like to stop along the way anddiscuss. Rarely will the same book-reading activity be coded for both ofthese styles.

Student read-aloud, individual. A single child reads aloud, in a smallgroup or whole class, from a picture book, chapter book, magazine, or hisor her own writing. (Note that although the description is provided, thisactivity was not observed in the target preschool classrooms.)

Student read-aloud, choral. More than 1 child reads aloud from apicture book, chapter book, magazine, poster, and so forth. (Note thatalthough the description is provided, this activity was not observed in thetarget preschool classrooms.)

Silent sustained reading. Children sit quietly and read to themselves.In preschool, this may include emergent reading and looking at pictures.What is important is that children are interacting with books independently.

TM group writing. The teacher is at the blackboard–easel, workingwith children on a group writing activity. Children offer the content of thewritten piece, but the teacher puts the ideas into complete sentences, withappropriate punctuation and so forth.

Writing instruction. The teacher tells the children how to do things thatwill help them to become independent writers, such as how to engage inadvanced organizing (e.g., webbing, outlining), how to move from outlineto written product, and how to proofread and edit. This also includesinstruction in the different forms of writing (expository vs. demonstration,etc.). At the preschool level, this will include invented spelling activities.(Note that although the description is provided, this activity was notobserved in the target preschool classrooms.)

Teacher model writing. The teacher, without input from the children,stands at the blackboard–easel and produces some sort of written product(depending on the level of the students, it could be as small as a sentence).The intent of the writing must be to model the act of writing and anappropriate product. (Note that although the description is provided, thisactivity was not observed in the target preschool classrooms.)

Student group writing. The children are working in pairs or smallgroups to produce a written product (such as a story). Not all of the childrenwill actually be doing the writing, but they should be engaged in discus-

sions about what will be written. Writing may include invented spellingand other emergent writing activities.

Student independent writing. Children are quietly writing a story,poem, or journal entry by themselves. Writing may include inventedspelling and other emergent writing activities.

Handwriting practice–instruction. Children are doing an activity in-tended to help improve their handwriting, or they are receiving instructionin good handwriting skills.

Spelling. Children are taking a spelling test, copying words, or beingasked to spell words (without seeing the word). (Note that although thedescription is provided, this activity was not observed in the target pre-school classrooms.)

Reading comprehension activity. These activities apply both to mate-rial children have read to themselves and material read to them. Childrenare completing worksheets related to material or are writing in response tosomething they have read or heard. (Note that although the description isprovided, this activity was not observed in the target preschool class-rooms.)

Reading comprehension strategies: TCM. This applies both to materialchildren have read to themselves and material read to them. The teacherdescribes or models specific strategies such as summarization, predicting,inferring, monitoring comprehension, and relating story to self. This in-cludes explicitly teaching children strategies to enhance active constructionof meaning from text—either read aloud or silently. In addition, childrenare asked to recall details about a story that has been read to them. Specificquestions from the teacher about the story or elements of the story are alsoreading comprehension strategies.

Reading comprehension strategies: CM. Children read in small groupsand discuss material they have read or that has been read to them. It is theCM counterpart to reading comprehension strategies. (Note that althoughthe description is provided, this activity was not observed in the targetpreschool classrooms.)

Discussion. Children are previewing a book the teacher is about to reador reviewing a storyline from a book the teacher has read aloud. Childrenare responding to and asking questions of both each other and the teacher.Discussion is more reciprocal and interactive than reading comprehensionstrategies and does not involve explicit–implicit teaching of comprehen-sion strategies.

Alphabet activity. Children are engaged in learning the names of theletters or focusing their attention on a particular letter of the alphabet. Forexample, they might have to make a letter out of clay, color a paper thatshows a particular letter and items that begin with that letter, or put theirbody in the shape of a letter.

Initial consonant. Children are identifying the beginning (initial) con-sonant sound of words, aurally and not visually. If the activity is visual andaural, then code the activity as letter sight–sound. An example of initialconsonant is when the teacher asks “What letter does the word Valentinebegin with?” If she has children say Valentine without the v, that is wordsegmentation.

Letter sight–sound. Children are engaged in activities that focus theirattention on the relationship between the written form of individual lettersand the sound those letters represent. Included here are activities such as“signs for sounds” wherein the teacher orally produces a single lettersound, and the children circle the letter (from an array of letters on aprepared paper) that represents that sound. This subactivity must combinethe written form and oral sounds that represent the written form. If nowritten form is used, then the activity is more appropriately coded as initialconsonant or word segmentation. Identifying individual letters embeddedin a word (such as spelling February while looking at the word) is alsoletter sight–sound.

Phonological awareness. Activities that focus on the sounds of theEnglish language, including rhyming games and songs. This should becoded when phonological awareness appears to be the only purpose of theactivity. A rhyming song such as “Five Little Monkeys Jumping on the

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Bed” would not be coded as language arts, subactivity phonological aware-ness, because the main purpose of the song is related to mathematics.

Word segmentation. Children are engaged in activities wherein theybreak words into subcomponents (syllables, subsyllables, or phonemes),orally; or they are charged with constructing whole words from orallypresented word segments. Included here are activities such as learningword families (children are presented with a rime and must find onsets thatmake real words; this is often an oral–written activity, but the initialresponse is oral). For an activity to be coded as word segmentation ratherthan letter sight–sound, the intent of the activity should be at the word leveland not the letter level.

Vocabulary. The teacher and/or children are discussing the meaning ofa word(s) or phrase (for longer than the 15-s interval).

Conventions of print. Conventions of written text such as where to startreading, reading from left to right or anything related to directionality,upper- and lowercase, identify punctuation symbols, talk about what–whoauthor and illustrators are.

Grammar and punctuation. The children are engaged in activitiesfocused on grammar or punctuation. (Note that although the description is

provided, this activity was not observed in the target preschool class-rooms.)

Computer. Children are working at the computer with a languagearts-oriented software, and the intent is unclear. Where possible, time spentat the computer is coded as the intent of the computer-based activity (e.g.,for accelerated reader, children answer reading comprehension questionsabout specific books to earn points—this would be coded as readingcomprehension activity rather than computer). Note that this is currentlycoded as CM. (Note that although the description is provided, this activitywas not observed in the target preschool classrooms.)

Sharing with class. Students or the teacher talk about personalbusiness to the group. Code for sharing not only during “show and tell”or a formal sharing activity but also when the class is in a circle justchatting with the teacher. Sharing should include both teacher andstudent input, and it should be clear that both expect the other to speakin a reciprocal way. A child who bursts out with news from home duringcalendar is interrupting, unless the teacher takes that opportunity to askwhether other children have things to share and continues the conver-sation with the class.

Appendix B

Description of Hierarchical Linear Models and Exemplar Model

Level 1

Yij � �0j �1j (fall letter–word)ij �2j (fall vocabulary)ij

�3j (fall alphabet)ij �4j (boy)ij �5j (Head Start–state)ij

�6 . . . nj (student-level instruction variables)ij rij

Level 2

�0j � �00 �01(total hours/week)

�02 . . . n (classroom-level instruction variables)j u0j

�1j � �10

�2j � �20 �21 . . . n (classroom instruction variables)j

�3j � �30

�4j � �40

�5j � �50

�6 . . . nj � �60 . . . n0

Yij, which is the spring letter–word recognition score for child i in classj, is a function of the respective coefficients (�j) at Level 1 as theypertain to child i’s fall vocabulary, letter–word recognition, and alpha-bet scores; age; and minutes of small-group–individual instruction typesas well as a residual (rij). �0j is a function of the fitted mean springletter–word recognition score for the sample of students (�00) plus theeffect of the total hours per week and the whole classroom instructionvariables for classroom j, plus error (uj). �10 represents the effect of fallvocabulary on spring reading comprehension. �20 represents the effectof fall letter–word score on spring letter–word score. �30 represents the

effect of fall alphabet score, and �40 represents the effect of child ageon spring letter–word score; �50 represents the effect of enrollment ina preschool intervention on spring letter–word score; �60 . . . n0 repre-sents the effect of amount and type of small-group–individual instruc-tion; �21 represents the interaction between classroom-level instructionvariables and student fall letter–word recognition score. The error at thelevel of the classroom is represented by uj. Residuals (u, r) wereassumed to be normally distributed with a mean of zero.

Hierarchical linear modeling results are interpreted in much the sameway as are regression results. Referring to Table 5, �00 represents the fittedmean letter–word score (345.64). The other gamma (�) coefficients rep-resent the effects of the particular independent variables (e.g., fall vocab-ulary score, fall alphabet score, etc.) and interactions (e.g., effect of TCM,Code-Focused, Classroom-Level Activity � Fall Letter–Word Score, �11).The t tests identify which effects are significantly greater or less than zero.For example, �01 represents the effect of overall hours per day spent inpreschool. The value .44 indicates that for every hour per week students arein preschool, on average, their letter–word score will be .44 points higherthan a student in preschool the average number of hours per week. The pvalue (�.001) indicates that there is a 99% chance that this value is greaterthan zero. This indicates that children who spend 25 hr per week inpreschool (10 hr above the mean of 15) will achieve letter–word scores 4points higher, on average, than will students who attend preschool for themean amount of time, 15 hr per week. The implications of interactioncoefficients (e.g., �11—effect of TCM, Code-Focused, Classroom-LevelActivity � Fall Letter–Word Score) are best understood by referring to thefigures.

Received January 10, 2006Revision received April 11, 2006

Accepted April 14, 2006 �

689CHILDREN’S EMERGENT LITERACY GROWTH