The Construct Validity of the CAPQ and PAI in a Sample of College Students
This study assessed the normative equivalence and construct validity of the Cleveland Adaptive Personality Questionnaire (CAP-Q, Poreh and Levin 2019), a relatively brief multi-scale personality inventory developed to assess personality traits and psychopathological states. The CAP-Q was administered concurrently with the Personality Assessment Inventory (PAI; Morey, 1991) to a sample of 109 college students. The standard scores for matching scales, computed using non-aged-corrected norms, were equivalent, with the CAP-Q age-corrected norms producing better fitting data. Additional analyses showed adequate convergent validity with highly correlated matching scales. Additionally, the multi-scale profiles were comparable across both non-elevated and elevated profiles. Overall, this study shows that the CAP-Q and PAI have similar psychometric properties, with the former being more consistent with prevailing diagnostic models. Recommendations for future studies of the CAP-Q are discussed, including the development of factorial-based subscales.