1. Johnson, Darryl., Edens, John. and Boccaccini, Ph.D., Marcus. "Unreliability of PCL-R Factor 1 among Sexual Offenders" Paper presented at the annual meeting of the American Psychology - Law Society, Westin Bayshore Hotel, Vancouver, BC, Canada, Mar 18, 2010 <Not Available>. 2019-12-14 <http://citation.allacademic.com/meta/p398976_index.html>Publication Type: Conference Paper/Unpublished Manuscript Review Method: Peer Reviewed Abstract: There is increasing concern that scores from the Hare Psychopathy Checklist-Revised (PCL-R) may be considerably less stable across examiners in applied contexts. This study examines archival data from a sample of imprisoned sex offenders (n = 20) who obtained relatively high PCL-R total scores (greater than or equal to 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 (ICC A,1 = .16). |