Identifying Subtypes of Criminal Psychopaths
- 18 June 2007
- journal article
- research article
- Published by SAGE Publications in Criminal Justice and Behavior
- Vol. 34 (8), 953-970
- https://doi.org/10.1177/0093854807300758
Abstract
Psychopathy is an important construct in offender classification. Although several studies have suggested that there are two distinct subtypes of psychopaths, these studies have considerable limitations, including reliance on self-report measures, a failure to adequately address heterogeneity within the construct of psychopathy, and predictor-criterion contamination. A recent taxonomic study (Vassileva, Kosson, Abramowitz, & Conrod, 2005) identified four subgroups of offenders, including primary and secondary psychopaths. The present study uses cluster analysis to replicate and extend those findings to (a) an independent sample and (b) a Psychopathy Checklist—Revised factor model that reduces predictor-criterion contamination. Also, initial results were validated using a novel clustering method. Results show that psychopathy subtypes are replicable across methods. Furthermore, comparisons on other variables provide external validation of the subtypes consistent with prior theoretical conceptualizations.Keywords
This publication has 51 references indexed in Scilit:
- Relations between Psychopathy Facets and Externalizing in a Criminal Offender SampleJournal of Personality Disorders, 2005
- Psychopathy versus psychopathies in classifying criminal offendersLegal and Criminological Psychology, 2005
- Identifying Psychopathy Subtypes on the Basis of Personality Structure.Psychological Assessment, 2004
- Obsessive–compulsive disorder subtypes: an attempted replication and extension of a symptom-based taxonomyBehaviour Research and Therapy, 2004
- Local Optima in K-Means Clustering: What You Don't Know May Hurt You.Psychological Methods, 2003
- An Evaluation of Relations Among Antisocial Behavior, Psychopathic Traits, and Alcohol Problems in Incarcerated MenAlcohol: Clinical and Experimental Research, 2002
- Refining the construct of psychopathy: Towards a hierarchical model.Psychological Assessment, 2001
- Violent recidivism in criminal psychopaths.Law and Human Behavior, 1996
- An evaluation of a maximum security therapeutic community for psychopaths and other mentally disordered offenders.Law and Human Behavior, 1992
- Psychopathy and violent recidivism.Law and Human Behavior, 1991