Comprehensive assessment of psychopathic personality disorder-institutional rating scale(CAPP-IRS) – validation

This study evaluated the psychometric properties of the Comprehensive Assessment of Psychopathic Personality-Institutional Rating Scale (CAPP-IRS): Staff Rating Scale, designed for use by staff at secure institutions. Ratings of psychopathy measured by the CAPP-IRS were evaluated against the FFM, as well as a theoretically defined nomological network of factors. Due to the small sample size it is unclear whether the CAPP-IRS as whole is suitable to assess psychopathy. Nevertheless, there is support that at least a couple of the CAPP-IRS domains have good psychometric properties. The concurrent validity of the CAPP-IRS was well established. There is support for its internal consistency reliability; however, its interrater reliability needs to be further evaluated. Practical implications related to implementing the CAPP-IRS in correctional facilities are discussed. Further research is needed to establish the overall psychometric properties of the CAPP-IRS and to determine whether its implementation could enhance the MH-screening process at correctional facilities