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Assessing psychopathy in forensic schizophrenia spectrum disorders: Validating the Comprehensive Assessment of the Psychopathic Personality-Institutional Rating Scale (CAPP-IRS).

Authors
  • De Page, Louis1
  • Mercenier, Sophie2
  • Titeca, Pierre2
  • 1 Centre Hospitalier Jean Titeca, Schaerbeek, Belgium; Mediter, Halle, Belgium. Electronic address: [email protected] , (Belgium)
  • 2 Centre Hospitalier Jean Titeca, Schaerbeek, Belgium. , (Belgium)
Type
Published Article
Journal
Psychiatry research
Publication Date
Jul 01, 2018
Volume
265
Pages
303–308
Identifiers
DOI: 10.1016/j.psychres.2018.05.019
PMID: 29778051
Source
Medline
Keywords
License
Unknown

Abstract

The assessment of psychopathy in (forensic) schizophrenia spectrum disorders is long-standing debate. In the present study, we investigated the psychometric properties of the Comprehensive Assessment of Psychopathic Personality-Institutional Rating Scale (CAPP-IRS) in a sample of 72 male forensic patients with a primary diagnosis of schizophrenia spectrum disorders. We compared the CAPP-IRS' psychometric properties to those of the Psychopathy Checklist-Revised (PCL-R). The CAPP-IRS showed good interrater reliability and internal consistency except for the CAPP-IRS Cognition and Emotional Domains. There appears to be a larger but intelligible overlap between the CAPP-IRS and schizophrenia symptoms than between the PCL-R and schizophrenia symptoms. Inversely, the PCL-R showed overall stronger associations with risk assessment measures. We conclude that, in (forensic) schizophrenia disorder spectrum patients, the CAPP-IRS has closer associations with clinical features, while the PCL-R is better a predicting risk and life-time dimensions.

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