HIGHLANDS AFFILIATE CONFERENCE July 24, 2013 On-going HAB Research Review Reliability of the HAB: test-retest and internal consistency Construct validity: Wonderlic Test (general intelligence) and Employee Aptitude Survey (verbal comprehension, visual speed/accuracy, spatial, word fluency) Accuracy of self-estimates of abilities versus actual HAB scores Factor Analysis: examining the relationship among the work samples over time Cluster and Discriminant Analysis: examining the relationship between ability profiles and job choice
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HIGHLANDS AFFILIATE CONFERENCE July 24, 2013 On-going HAB Research Review
HIGHLANDS AFFILIATE CONFERENCE July 24, 2013 On-going HAB Research Review. Reliability of the HAB: test-retest and internal consistency Construct validity: Wonderlic Test (general intelligence) and Employee Aptitude Survey (verbal comprehension, visual speed/accuracy, spatial, word fluency) - PowerPoint PPT Presentation
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HIGHLANDS AFFILIATE CONFERENCE
July 24, 2013
On-going HAB Research Review
Reliability of the HAB: test-retest and internal consistency
Construct validity: Wonderlic Test (general intelligence) and Employee Aptitude Survey (verbal comprehension, visual speed/accuracy, spatial, word fluency)
Accuracy of self-estimates of abilities versus actual HAB scores
Factor Analysis: examining the relationship among the work samples over time
Cluster and Discriminant Analysis: examining the relationship between ability profiles and job choice
What is Reliability?
Test-Retest Internal Consistency
Time 1
Time 2
Test score
correlationr12 = 1.0
TEST-RETEST RELIABILITYCorrelation Coefficient
Vocabularyr12 = .90
Work Sample Test-Retest Internal ConsistencyAlpha Split-Half
Used to predict membership in two or more mutually exclusive groups. A set of discriminant functions (equations) is used to estimate the probability of membership for each group.
P1 = .65
P2 = .30
P3 = .50
P4 = .10
1Sales
2Engineering
3Law
4Education
Job Groups Discriminant Functions
Cluster AnalysisCluster Analysis
A cluster is a group of individuals with similar abilities.
Maximize the similarity of ability profiles within groups and minimize similarity between groups.