Assessment of Psychopathy in Austria
Psychometric Properties of the Psychopathy Checklist-Revised
Abstract
The Psychopathy Checklist-Revised (PCL-R) is a clinician rating instrument for psychopathic personality disorder. Although the instrument is routinely used in forensic assessment in Austria, Germany, and Switzerland, data on its psychometric properties in German-speaking countries are lacking. Based on a national sample of adult male sexual offenders assessed at a federal evaluation unit in Austria (N = 1,046), reliability and factor structure were estimated. More specifically, measurement invariance was assessed with respect to the North American normative data of male offenders. In the sample, the PCL-R achieved similar levels of reliability as those reported in the manual for North American male offenders. According to confirmatory factor analysis, a four-factor model of psychopathy described the data well. More specifically, weak measurement invariance (i.e., equivalence of loadings, not of thresholds) held in comparison with the North American data. The present findings support the suitability of the PCL-R for assessment purposes in German-speaking countries. However, the total score is not directly comparable to North American data given that only weak measurement invariance was observed.
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