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ERIC Number: EJ888946
Record Type: Journal
Publication Date: 2010
Pages: 14
Abstractor: As Provided
Reference Count: 73
ISSN: ISSN-1073-1911
Using the PCL-R to Help Estimate the Validity of Two Self-Report Measures of Psychopathy with Offenders
Poythress, Norman G.; Lilienfeld, Scott O.; Skeem, Jennifer L.; Douglas, Kevin S.; Edens, John F.; Epstein, Monica; Patrick, Christopher J.
Assessment, v17 n2 p206-219 2010
Two self-report measures of psychopathy, Levenson's Primary and Secondary Psychopathy scales (LPSP) and the Psychopathic Personality Inventory (PPI), were administered to a large sample of 1,603 offenders. The most widely researched measure of criminal psychopathy, the Hare Psychopathy Checklist-Revised (PCL-R), served as a provisional referent for estimating the construct validity of these self-report measures with offenders. Compared with the LPSP, the PPI displayed higher zero-order correlations with the PCL-R, better convergent and discriminant validity, and more consistent incremental utility in predicting PCL-R scores. Furthermore, using a variant of Westen and Rosenthal's approach to evaluating the construct validity of a new measure, compared with the LPSP, the PPI's pattern of associations with measures of 35 external criterion variables was more similar to the pattern observed for the PCL-R. Results generally provide stronger support for the validity of the PPI than the LPSP in offender populations using the PCL-R as a provisional benchmark, particularly for assessing interpersonal and affective features of psychopathy. (Contains 5 notes, 2 tables, and 1 figure.)
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A