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Convergence between Thematic Apperception Test (TAT) and self-report: Another look at some old questions
Morgan N McCredie1, Leslie C Morey1
1Department of Psychology, Texas A&M University, College Station, Texas.
Objective:
This study extends upon the investigation of the influence of response format on the convergence between performance-based and self-report assessments of similar mental health constructs, to further examine the role of method variance in poor heteromethod convergence.
Methods:
An online sample of 455 participants (57% male; mean age = 35.5 years) completed a multiple-choice adaptation of the Thematic Apperception Test (TAT)-the Iowa Picture Interpretation Test (IPIT)-and two self-report instruments: the Personality Assessment Inventory (PAI) and the International Personality Item Pool (IPIP) representation of the domain traits of the five-factor model.
Results:
Several significant and meaningful interrelationships emerged between the IPIT and the PAI and IPIP five-factor scales.
Conclusions:
Findings suggest that TAT methodology can correlate meaningfully with similar constructs assessed using self-report when comparable response formats are utilized, offering further support for the role of method variance in precluding heteromethod relationships.
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