In this 2nd Edition, the data sample was obtained from a total of 10,896 offenders and patients. Pooled samples for male offenders, male forensic psychiatric patients, and female offenders were used to calculate the Hare PCL–R percentiles and T-scores for total and factor scores. Descriptive statistics are available for assessments conducted with the standard procedure (interview and file information) and for file reviews only. Standard assessments included 5408 male offenders, 1246 male forensic psychiatric patients, and 1218 female offenders. File reviews included 2,622 male offenders and 402 male forensic psychiatric patients. Complete norming information and details of the samples are described fully in the Hare PCL–R: 2nd Edition Technical Manual. Profile Reports
Reliability and Validity
Widely accepted as the definitive resource in assessing psychopathic personality disorders, the Hare PCL–R is commonly used in research on criminal offenders and forensic psychiatric patients. Although the items and scoring criteria are unchanged, this 2nd Edition contains new information and a large amount of data for establishing comparison tables and descriptive statistics for selected groups, and for addressing issues of reliability, validity, and generalizability, due to the dramatic surge in published theory and research on psychopathy. New research findings derived from confirmatory factor analysis and item response theory are presented, as well as the implications of these findings for research, clinical, and forensic purposes. Detailed data presented in the manual include construct validity; item reliabilities, interrater reliability, and internal consistency reliability; reliability of total, factor, and facet scores, and standard error of measurement; correlation of the Hare PCL–R: 2nd Edition with self-report measures, clinical assessments of psychopathy, personality scales, anxiety scales, and demographic variables; descriptive statistics for samples; and, item response theory analyses.
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Profile Reports provide classification information based on the overall assessment score. Download a sample Profile Report
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For more information on the PCL–R 2nd Edition click here.
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Robert D. Hare, Ph.D.
Robert D. Hare, Ph.D. is Emeritus Professor of Psychology at the University of British Columbia, where he has taught and conducted research for some 35 years. He is President of Darkstone Research Group Ltd., a forensic research and consulting firm, and has devoted most of his academic career to the investigation psychopathy, its nature, assessment, and implications for mental health and criminal justice. Dr. Hare is the author of several books and many scientific articles on psychopathy, and is the developer of the Psychopathy Checklist-Revised (PCL-R) and co-author of its derivatives, the Psychopathy Checklist: Screening Version (PCL:SV), the Psychopathy Checklist: Youth Version (PCL:YV), the P-SCAN and the Antisocial Process Screening Device (APSD).
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