@article{ref1,
title="Identifying subtypes of criminal psychopaths: a replication and extension",
journal="Criminal justice and behavior",
year="2007",
author="Swogger, Marc T. and Kosson, David S.",
volume="34",
number="8",
pages="953-970",
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. <br><br>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.<p /><p>Language: en</p>",
language="en",
issn="0093-8548",
doi="10.1177/0093854807300758",
url="http://dx.doi.org/10.1177/0093854807300758"
}