APPROVED: Amy R. Murrell,.Major Professor Jennifer L. Callahan, Committee Member Camilo Ruggero, Committee Member Vicki L. Campbell, Chair of the Department of Psychology David Holdeman, Dean of the College of Liberal Arts and Social Sciences Victor Prybutok, Dean of the Toulouse Graduate School INTERPERSONAL FUNCTIONING AND EXPERIENTIAL AVOIDANCE: CONSIDERING NEW MEASUREMENTS AND THEIR IMPLICATIONS Daniel S. Steinberg, M.A. Dissertation Prepared for the Degree of DOCTOR OF PHILOSOPHY UNIVERSITY OF NORTH TEXAS August 2018
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APPROVED: Amy R. Murrell,.Major Professor Jennifer L. Callahan, Committee Member Camilo Ruggero, Committee Member Vicki L. Campbell, Chair of the Department of
Psychology David Holdeman, Dean of the College of
Liberal Arts and Social Sciences Victor Prybutok, Dean of the Toulouse
Graduate School
INTERPERSONAL FUNCTIONING AND EXPERIENTIAL AVOIDANCE:
CONSIDERING NEW MEASUREMENTS AND
THEIR IMPLICATIONS
Daniel S. Steinberg, M.A.
Dissertation Prepared for the Degree of
DOCTOR OF PHILOSOPHY
UNIVERSITY OF NORTH TEXAS
August 2018
Steinberg, Daniel S. Interpersonal Functioning and Experiential Avoidance: Considering
New Measurements and Their Implications. Doctor of Philosophy (Clinical Psychology), August
2018, 76 pp., 11 tables, references, 90 titles.
Interpersonal functioning can be conceptualized as being comprised of social skills,
connectedness, social cognition, and intimacy. A concept that is related to an examination of
interpersonal functioning is experiential avoidance (EA), which can be defined as an
unwillingness to experience or remain in contact with unpleasant private events through attempts
to avoid or escape from these experience. An examination of EA and interpersonal functioning
has not previously taken place. This study thus sought to fill that gap in the literature. The
availability of a behavioral-oriented measure of interpersonal functioning aided in this
investigation. The relationship of EA and interpersonal functioning to depression and anxiety
were also examined, in order to evaluate their relative contributions to psychopathology.
Overall, it was found that EA and interpersonal functioning were significantly related. However,
the dimensions of EA varied in strength with respect to their relationships with interpersonal
functioning. Further, it was found that interpersonal functioning predicted unique variance in
both depression and anxiety, and partially mediated the relationship between EA and both
anxiety and depression. These results might guide the development of treatment programs and
add support to the use of treatments with trans-diagnostic targets.
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Copyright 2018
by
Daniel Stephen Steinberg
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ACKNOWLEDGEMENTS
This long graduate school journey began in the spring of 2010, when I joined the lab of
Dr. Amy Murrell as an undergraduate research assistant. That moment was the kind that set into
motion a whole series of events, culminating in the opportunity to write this thank you. Thank
you for believing in me, for making a place for me to grow, and for being there for me through
my successes and my tragedies.
Thank you also to my dissertation committee members, Dr. Jennifer Callahan and Dr.
Camilo Ruggero. Your perspective was invaluable and helped steer this dissertation in a way
that made it both enjoyable and interesting. Likewise, to the UNT Contextual Psychology
Group, thank you for your contributions to this project, particularly Teresa Hulsey.
To my children, Catherine, James, and Lillian: I have been walking on this journey
through your entire lives. I think we all made sacrifices along the way; it is my hope that they
will be worth it. I often use a metaphor to describe living a valued life that describes walking
along a beach towards a sunset, which you will never actually reach. Through all the times that
the obstacles I encountered gave me pause, when the beach was covered in glass and broken
rock. When the storm rolled in, clouds obscuring the sun and waves pounding the beach until all
I could do was blindly grope along, hoping it was still the right direction, you three were the light
that guided me. I hope that in some small way my own struggles will have made your own
easier to bear.
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TABLE OF CONTENTS
Page
ACKNOWLEDGEMENTS ........................................................................................................... iii
LIST OF TABLES ......................................................................................................................... vi
Avoidance and Fusion and Questionnaire for Youth ............................................ 26
Patient-Reported Outcomes Measurement Information System – Satisfaction with Social Roles and Activities v. 2.0 ......................................................................... 27
Multiple Regressions for FIAT-Q Predicting DASS-D over MEAQ ................... 35
Multiple Regressions for FIAT-Q predicting DASS-A over MEAQ ................... 37
Multiple Regressions for FIAT-Q Predicting DASS-D over MEAQ in the MTurk Sample................................................................................................................... 39
Multiple Regressions for FIAT-Q Predicting DASS-A over MEAQ in the MTurk Sample................................................................................................................... 42
Table 1. Descriptive Statistics for Measure Variables .................................................................. 29
Table 2. Correlations between DASS-21 and FIAT-Q ................................................................. 30
Table 3. Correlations between MEAQ and DASS-21 .................................................................. 31
Table 4. Correlations between MEAQ and FIAT-Q ..................................................................... 32
Table 5. Mediations between FIAT-Q Subscales and MEAQ Total for DASS-D ....................... 46
Table 6. Mediations between FIAT-Q Subscales and MEAQ TOTAL for DASS-A .................. 47
Table 7. Mediations between MEAQ subscales and FIAT-Q Total for DASS-D ........................ 48
Table 8. Mediations between MEAQ subscales and FIAT-Q Total for DASS-A ........................ 49
Table 9. Correlations between the AFQ-Y and MEAQ ................................................................ 50
Table 10. Correlations between the PROMIS and FIAT-Q .......................................................... 51
Table 11. Independent Samples t-Test for all Measures and Subscales for the Student and MTurk Samples ......................................................................................................................................... 52
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CHAPTER 1
INTRODUCTION
Current trends in the treatment of those suffering from psychiatric disorders emphasize
targeting disorder specific symptoms throughout therapy, particularly those therapies in the
cognitive-behavioral tradition (Wetterneck & Hart, 2012). However, this focus may have led to
a focus on treatment goals that are too narrow, missing common functional impairments that are
not specifically outlined or addressed by the current Diagnostic and Statistical Manual of Mental
Disorders (DSM-5; APA, 2013). One such area of impairment is interpersonal functioning.
Interpersonal Functioning
Interpersonal functioning can be conceptualized as being comprised of social skills,
connectedness, social cognition, and intimacy; however, intimacy is perhaps the core component
of interpersonal functioning (Wetterneck & Hart, 2012). There have been many varied attempts
to define intimacy over several decades. Some have defined intimacy as being the quality of an
interaction between two people, where individuals produce reciprocal behaviors which function
to maintain closeness (Argyle & Dean, 1965; Patterson, 1982). Other definitions have focused
on motivations for seeking intimate experiences, such as the need for warmth, closeness, and
experiences which are validating (McAdams, 1985, Sullivan, 1953).
Interpersonal intimacy has also been defined as developing primarily from self-disclosure
Therefore, in order to best provide information and empirical data for which treatment providers
make informed decisions, the current study also sought to evaluate the relative predictive power
of interpersonal functioning and EA over each other with respect to depression and anxiety,
holding each constant in turn.
The availability now of several measures of EA also allowed for an examination of the
relationships between EA, as measured by each. The MEAQ and AFQ-Y each were thought to
add unique contributions in the measurement of EA, or each may measure a unique aspect which
could be captured differently within a given sample. The current study also sought to evaluate
these differences and similarities, in order to more fully explore the nature of EA and what may
be different between how it is assessed by each measure.
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Analyses were conducted not only at the total score level, but also with the individual
scales of the MEAQ (behavioral avoidance, distress aversion, repression/denial,
distraction/suppression, procrastination, and distress endurance) and the five classes of
interpersonal functioning of the FIAT-Q (assertion of needs, bidirectional communication,
conflict, disclosure and interpersonal closeness, and emotional experience and expression). An
understanding of the relationships among these scales will allow us to tailor treatments which
have the potential to address them, and the differential patterns which emerge, as related to
depression and anxiety, can help to prioritize specific areas of impairment over others, for both
assessment and treatment. The following hypotheses were proposed:
Hypothesis 1: Interpersonal functioning would be inversely correlated with depression and anxiety.
a. The FIAT-Q classes would be correlated with DASS-21 scores.
Hypothesis 2: Experiential avoidance would be positively correlated with depression and anxiety.
a. The MEAQ subscales and total scores would be positively correlated with DASS-21 scores.
Hypothesis 3: Interpersonal functioning would be positively correlated with experiential avoidance.
a. The FIAT-Q classes and the MEAQ subscales would be positively correlated.
Hypothesis 4: Differential patterns in the relationships among the interpersonal functioning and experiential avoidance subscales would be evident.
a. The MEAQ behavioral avoidance, distress aversion, and distress endurance subscales would be more strongly related to the FIAT-Q classes than the MEAQ repression/denial, distortion/suppression, and procrastination subscales.
Hypothesis 5: Interpersonal functioning would predict unique variance in depression and anxiety above and beyond that predicted by experiential avoidance.
a. The FIAT-Q classes would predict unique variance in DASS-21 scores above and beyond that of the MEAQ.
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Hypothesis 6: Distinct and differential patterns within the interpersonal functioning subscales, with respect to predictive power beyond the experiential avoidance subscales for depression and anxiety, would be evident.
a. The MEAQ repression/denial, distraction/suppression, and distress endurance subscales would be more related to depression than the other MEAQ subscales.
b. The MEAQ behavioral avoidance, distress aversion, and procrastination subscales would be more related to anxiety than the other MEAQ subscales.
c. The FIAT-Q classes would have differential relationships with the MEAQ subscales, but would also predict unique variance in depression and anxiety.
Hypothesis 7: Although they would be significantly related, the measures of EA would not be perfectly related, and some subscales would be more related than others.
a. The AFQ-Y and MEAQ would be significantly positively correlated.
b. The MEAQ distress aversion subscale would be more highly related to the AFQ-Y than the other MEAQ scales.
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CHAPTER 2
METHODS
Participants
Study participants were recruited from the student body at the University of North Texas
(UNT) as well as online through Amazon’s Mechanical Turk (MTurk) service. Participation was
offered to students who were eligible to enroll in studies as part of their course curriculum to
receive credit towards their classes (either mandatory or as extra credit). 878 UNT students and
100 MTurk participants completed the study, which was hosted on Qualtrics. Study participation
was limited to those who were 18-years of age or older and to those who spoke English fluently.
No additional exclusion or inclusion criteria were utilized.
The UNT student sample (n = 878) had an age range of 18 to 51 years (M = 20.68, SD =
3.121). The UNT student sample was primarily female (69.6%) and single (91.6%). With
respect to standing, 27.2% were freshman, 23.5% sophomores, 25.6% juniors, and 22.4%
seniors, with the remaining 1.1% post-baccalaureates or graduate students. The majority of the
UNT student participants were White (45.6%), with a further 24.5% identifying as Hispanic or
Latino, 15.3% as Black or African American, 7.6% as Asian, 2.1% as Middle Eastern, 1% as
Native American or Alaskan Native, 0.7% as Native Hawaiian or Other Pacific Islander, and
3.3% as Other.
The MTurk sample (n = 100) had an age range of 18 to 61 (M = 33.50, SD = 9.79). The
MTurk sample was almost evenly split between male (49%) and female (51%); 60% were single,
31% married. With respect to standing, 15% identified that they were freshman, 12%
sophomores, 17% juniors, and 3% seniors; 40% identified as post-baccalaureates 13% indicated
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they were graduate students. Finally, 79% were White, 11% Black or African American, 6%
were Asian, and 4% Hispanic/Latino.
Procedure
The study was in the form of an electronic survey completed online, with availability
made to undergraduates via the University of North Texas SONA system and through the
Amazon Mechanical Turk service to the non-student participants. First, informed consent to
participate in the study was obtained; the participant had the option to indicate agreement by
continuing the survey. If they chose not to give consent, the survey was terminated at that time.
After informed consent, the participant was given measures of anxiety, depression, interpersonal
functioning, and experiential avoidance, respectively. After completion of those measures, they
completed a demographics questionnaire. All measures were given in a single administration
session. Finally, the participants were given a debriefing summary and the survey then
terminated. The average length of time it took participants to complete the survey was 1.9 hours,
after removing outliers.
Measures
Demographics Questionnaire
The demographics questionnaire asked basic questions related to the participant’s age,
gender, race/ethnicity, education level, and relationship status.
Depression Anxiety and Stress Scale – 21 Item
The Depression Anxiety and Stress Scale – 21 Item (DASS-21; Lovibond & Lovibond,
24
1995) is a short form of the original 42-item measure developed by Lovibond and Lovibond
(1995). It is a self-report measure of depression, anxiety, and stress, as experienced by the
individual over the course of the past week. The DASS-21 has good internal consistency (α =
.88) and good convergent and discriminant validity with others measures of depression, such as
the Beck Depression Inventory in both student and clinical samples (Lovibond & Lovibond,
1995; Brown, Chorpita, Korotitsch, & Barlow, 1997). Items are measured from 0 to 3 with 0
indicating no severity (i.e., did not apply to me at all to applied to me very much, or most of the
time). Sample items include “I felt down-hearted and blue” and “I felt I wasn’t worth much as a
person.” Total scores for the DASS-21 range from 0-63. The DASS-21 has been used in
previous studies investigating its relationship with EA, and findings indicate significant negative
& Roemer, 2004; Kashdan, Barrios, Forsyth, & Steger, 2006). The study results suggest that
interpersonal functioning is also a useful target for treatment, rather than suggesting that EA is
not.
Limitations
Several important limitations should be considered with respect to this study. First, and
perhaps most obviously, this study’s primary sample consisted of undergraduate students from a
single university. Although the participants did have some diversity with respect to ethnicity,
participant demographic variables were limited. Therefore, at least some caution should be
considered when generalizing these results to the entire population. Although a smaller sample
was also recruited from the Amazon MTurk service, this sample was even more limited with
respect to ethnic identity, though it was more evenly split between males and females. Of
course, this sample was likewise limited to those who already regularly participate in such a
service, individuals who have a tendency to be younger, overeducated, underemployed, and
generally more liberal than the standard population (Paolacci & Chandler, 2014). Therefore,
additional caution should be utilized when attempting to generalize these results as well.
Additionally, the MTurk sample may have been too small for some of the analyses performed in
this study and therefore underpowered. For example, the Sobel’s test utilized for Hypothesis 6
generally requires a sample size of approximately 1000 to detect a small effect (MacKinnon,
Lockwood, Lockwood, West, & Sheets, 2002), and while this was available for the student
sample, it was lacking in the MTurk sample.
68
This study was conducted in an online survey format, which comes with some associated
difficulties, most notable of which is the difficulty in detecting random responding or lack of
effort in response style. However, the sample size was likely sufficient to dilute such effects,
and the planned analyses required a fairly large sample to have sufficient power to detect an
effect. Therefore, this likely represents an acceptable tradeoff. The study measures were also
given in the same order to each participant, thus potentially creating the possibility of order
effects. As this study utilized a cross-sectional single time point data collection method, analyses
allowing for exploration of causal relationships between EA, interpersonal functioning,
depression, and anxiety were not feasible. This means that all assertions that targeting
interpersonal functioning as a target in treatment must be verified or supported by relevant
studies demonstrating the efficacy of such treatments.
With regard to the measures used, the development of the MEAQ involved the AAQ-II as
a comparison to determine the relationship to existent measures of EA. It would have been
useful to include the AAQ-II in addition to the AFQ-Y, in order to serve as an additional data
point to compare to the findings by Gámez et al. (2011) and to compare the MEAQ to two
accepted measures, rather than just one.
Future Directions
It is hoped that this study opens several avenues for future research. In some ways, future
research could effectively address the current study limitations directly, such as utilizing a more
expansive community sample, or more particularly a large clinical sample. A very large sample
of this nature would allow for analyses which would detect relatively small effect sizes
successfully, which were not possible to successfully perform in the MTurk sample. However,
69
perhaps most importantly, the measures used in this study (particularly the FIAT-Q and MEAQ)
could be given in a study involving treatment seeking individuals, particularly in a trial
examining the effectiveness of transdiagnostic treatment modalities such as ACT or FAP. This
sort of longitudinal study design would allow evaluating causality with respect to treatment
targets and their relationships to functional impairment (e.g., depression and anxiety). Utilizing
additional measures of EA, such as the AFQ-Y, in these studies would also allow us to better
understand how the MEAQ measures EA compared to other, more validated, measures. It would
also be an interesting course of study to examine the nature of these variables as they might exist
within relationship dyads, whether there are any differential or opposite patterns present which
may be contributing to relationship dysfunction, and whether these potential patterns resolve or
respond to treatments which target them.
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