Development and initial validation of the Comprehensive Assessment of Psychopathic Personality-Self-Report (CAPP-SR)

The Comprehensive Assessment of Psychopathic Personality (CAPP; Cooke, Hart, Logan, & Michie, 2012) is a concept map that entails 33 personality traits; it integrates historical and contemporary conceptualizations and operationalizations of psychopathy. The current project sought to develop and validate a self-report inventory to operationalize this concept map. Study 1 reported on the development of a CAPP Self-Report (CAPP-SR) inventory using expert ratings to select items for an experimental version. Next, these experimental items were evaluated in an online sample of 550 community-dwelling U.S. participants who were carefully recruited to match current U.S. census data on gender, age, and race/ethnicity. The application of various latent modeling and classical test theory procedures resulted in the 99-item CAPP-SR measure. In Study 2, two samples from the United States and New Zealand were used for initial validation purposes. CAPP scales showed a promising pattern of convergent validity with other self-report psychopathy scales. The new CAPP-SR inventory is promising for furthering research on this emerging psychopathy model in correctional, forensic, business, and other settings in which this clinical construct is of high importance. (PsycINFO Database Record (c) 2019 APA, all rights reserved).