The Comprehensive Assessment of Psychopathic Personality (CAPP) is an emerging integrative model that makes use of 33 symptoms to characterize psychopathic personality disorder, but operationalizations of this model have not endured extensive validation to date. The current study sought to validate the recently published CAPP-Self-Report (CAPP-SR). Participants derived from two Lithuanian offender (n = 231) and nonoffender (n = 312) samples. They were administered the CAPP-SR, Triarchic Psychopathy Measure, Buss-Perry Aggression Questionnaire, and a subsample of offenders also had Offender Assessment System risk assessment scores available. The results showed that CAPP-SR total, domain, and symptom scores were associated with TriPM and Aggression Questionnaire scores in a manner consistent with conceptual expectations. CAPP-SR symptoms specifically reflective of aggression, anger, and antagonism were most strongly associated with Offender Assessment System risk scores. The findings provide support for construct validity of CAPP-SR scores as well as have implications for the CAPP model more broadly, which are discussed.
Keywords: Comprehensive Assessment of Psychopathic Personality; assessment; prison inmates; psychopathy; self-report.