title: Psychopathy and ethnicity: structural, item, and test generalizability of the Psychopathy Checklist--Revised (PCL-R) in Caucasian and African American Participants.
abstract: The Psychopathy Checklist--Revised (PCL-R) is an important measure in both applied and research settings. Evidence for its validity is mostly derived from male Caucasian participants. PCL-R ratings of 359 Caucasian and 356 African American participants were compared using confirmatory factor analysis (CFA) and item response theory (IRT) analyses. Previous research has indicated that 13 items of the PCL-R can be described by a 3-factor hierarchical model. This model was replicated in this sample. No cross-group difference in factor structure could be found using CFA; the structure of psychopathy is the same in both groups. IRT methods indicated significant but small differences in the performance of 5 of the 20 PCL-R items. No significant differential test functioning was found, indicating that the item differences canceled each other out. It is concluded that the PCL-R can be used, in an unbiased way, with African American participants.
authors.affiliation: Department of Psychology, Glasgow Caledonian University and Douglas Inch Centre, 2 Woodside Terrace, Glasgow, G3 7UY United Kingdom. djcooke@rgardens.u-net.com
authors.forename: D J
authors.initials: DJ
authors.lastname: Cooke
authors.forename: D S
authors.initials: DS
authors.lastname: Kosson
authors.forename: C
authors.initials: C
authors.lastname: Michie
mesh_terms: D000328:Adult; D001741:Black or African American / Q000523:psychology*; D000987:Antisocial Personality Disorder / Q000175:diagnosis* / Q000523:psychology; D006801:Humans; D008297:Male; D010555:Personality Inventory / Q000706:statistics & numerical data*; D011329:Prisoners / Q000523:psychology; D011594:Psychometrics; D015203:Reproducibility of Results; D044465:White People / Q000523:psychology*