title: Psychopathy, IQ, and violence in European American and African American county jail inmates.
abstract: The accuracy of the prediction of criminal violence may be improved by combining psychopathy with other variables that have been found to predict violence. Research has suggested that assessing intelligence (i.e., IQ) as well as psychopathy improves the accuracy of violence prediction. In the present study, the authors tested this hypothesis by using a contemporary measure of psychopathy, the Psychopathy Checklist--Revised (R. D. Hare, 2003), in a sample of 326 European American and 348 African American male offenders. The postdictive power of psychopathy was evident for both ethnic groups and robust across most changes in the operationalization of violence and the analysis conducted, whereas the postdictive power of IQ was not. No Psychopathy x IQ interactions were identified. Implications of these results for violence prediction are discussed.
authors.affiliation: Department of Psychology, Rosalind Franklin University of Medicine and Science, 3333 Green Bay Road, North Chicago, IL 60064, USA. zcwalsh@hotmail.com
authors.forename: Zach
authors.initials: Z
authors.lastname: Walsh
authors.forename: Marc T
authors.initials: MT
authors.lastname: Swogger
authors.forename: David S
authors.initials: DS
authors.lastname: Kosson
mesh_terms: D000328:Adult; D000987:Antisocial Personality Disorder / Q000175:diagnosis / Q000453:epidemiology*; D044383:Black People / Q000706:statistics & numerical data*; D003072:Cognition Disorders / Q000175:diagnosis / Q000453:epidemiology*; D006801:Humans; D008297:Male; D011329:Prisoners / Q000706:statistics & numerical data*; D011330:Prisons / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires; D014754:Violence / Q000706:statistics & numerical data*; D014888:Wechsler Scales; D044465:White People / Q000706:statistics & numerical data*; D001741:Black or African American