Sam Houston State University.
Special Issue Paper
Inter-rater reliability of the PCL-R total and factor scores among psychopathic sex offenders: are personality features more prone to disagreement than behavioral features?†
Version of Record online: 25 JAN 2010
Copyright © 2010 John Wiley & Sons, Ltd.
Behavioral Sciences & the Law
Special Issue: Adolescent Sexual Offending II
Volume 28, Issue 1, pages 106–119, January/February 2010
How to Cite
Edens, J. F., Boccaccini, M. T. and Johnson, D. W. (2010), Inter-rater reliability of the PCL-R total and factor scores among psychopathic sex offenders: are personality features more prone to disagreement than behavioral features?. Behav. Sci. Law, 28: 106–119. doi: 10.1002/bsl.918
This research was supported by the Texas Department of Criminal Justice under a research agreement with the first author. Points of view are those of the authors and do not necessarily represent the position of the Texas Department of Criminal Justice.
- Issue online: 25 JAN 2010
- Version of Record online: 25 JAN 2010
- Texas Department of Criminal Justice
Despite considerable support for the inter-rater reliability of the Hare Psychopathy Checklist—Revised (PCL-R; Hare, 1991, 2003) in research contexts, there is increasing concern that scores from this instrument may be considerably less stable across examiners in applied contexts, particularly when scoring is based on separate interviews. The present study examines archival data from a sample of imprisoned sex offenders (n = 20) who obtained relatively high PCL-R total scores (≥25) and were administered this instrument on a second occasion by a different examiner. Intraclass correlations for the total and Factor 2 score were lower than those generally reported in research studies. Of greater concern, Factor 1 scores were only negligibly related to each other (ICCA,1 = .16). Correcting for potential range restriction among these high scoring individuals resulted in total and Factor 2 score measures of agreement that were somewhat more consistent with published research, but Factor 1 continued to display exceedingly poor agreement across examiners. Copyright © 2010 John Wiley & Sons, Ltd.