Journal article
The personality assessment inventory as a proxy for the psychopathy checklist-revised - Testing the incremental validity and cross-sample robustness of the antisocial features scale
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Author list: Douglas, K S
Publication year: 2007
Start page: 255
End page: 269
Number of pages: 15
ISSN: 1073-1911
DOI: http://dx.doi.org/10.1177/1073191107302138
View additional information: View in Web of Science™
Abstract
The Personality Assessment Inventorys (PAIs) ability to predict psychopathic personality features, as assessed by the Psychopathy Checklist-Revised (PCL-R), was examined. To investigate whether the PAI Antisocial Features (ANT) Scale and subscales possessed incremental validity beyond other theoretically relevant PAI scales, optimized regression equations were derived in a sample of 281 Canadian federal offenders. ANT, or ANT-Antisocial Behavior (ANT-A), demonstrated unique variance in regression analyses predicting PCL-R total and Factor 2 (Lifestyle Impulsivity and Social Deviance) scores, but only the Dominance (DOM) Scale was retained in models predicting Factor I (Interpersonal and Affective Deficits). Attempts to cross-validate the regression equations derived from the first sample on a sample of 85 U.S. sex offenders resulted in considerable validity shrinkage, with the ANT Scale in isolation performing comparably to or better than the statistical models for PCL-R total and Factor 2 scores. Results offer limited evidence of convergent validity between the PAI and the PCL-R.
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