An Examination of the Reliability and Validity of the Comprehensive Assessment of Traits Relevant to Personality Disorder–Static Form (CAT-PD-SF)

Abstract

The current study examined the reliability and validity of the Comprehensive Assessment of Traits Relevant to Personality Disorder–Static Form (CAT-PD-SF), a dimensional measure of personality psychopathology. Specifically, we used exploratory factor analysis to determine the best higher order structure for the CAT-PD-SF traits. Results suggested a five-factor structure, albeit with marginal model fit. Second, we used correlation analyses to compare the CAT-PD-SF with two additional dimensional measures of personality, the Personality Inventory for DSM-5–Brief Form and the Five-Factor Model Rating Form. The results demonstrated the CAT-PD-SF scale scores were associated with domain and facet scores from these two models in a conceptually expected manner. Finally, we explored the association between the CAT-PD-SF scores and functional impairment and found moderate associations between CAT-PD-SF trait and functional impairment scores (as measured by the Measure of Disordered Personality Functioning Scale). Overall, findings add support to the structure of the CAT-PD model, and the use of the CAT-PD-SF in measuring dimensional personality psychopathology and impairment.