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26 Crim. Just. & Behavior 3 (1999)

handle is hein.journals/crmjusbhv26 and id is 1 raw text is: THE HCR-20 VIOLENCE RISK ASSESSMENT SCHEME Concurrent Validity in a Sample of Incarcerated Offenders KEVIN S. DOUGLAS CHRISTOPHER D. WEBSTER Simon Fraser University The Historical, Clinical, and Risk Management (HCR-20) violence risk assessment scheme was coded in a sample of 75 Canadian male, federally sentenced, maximum-security offenders. The concurrent validity of the HCR-20 was assessed through comparison to other risk instruments and to the presence of several past indexes of violent and antisocial behavior. The HCR-20 showed moderate to strong relationships with the concurrent measures. The HCR-20 was as or more strongly related to past violence than were the Psychopathy Checklist-Revised or the Violence Risk Appraisal Guide. Scores above the median of the HCR-20 increased the odds of the presence of various measures of past violence and antisocial behavior by an average of four times. Although recognizing the limitations of a small sample and retrospective design, the results give some indication that the HCR-20 may be worth investigating as a useful tool for vio- lence risk assessments in correctional samples. The assessment of risk for violent behavior has come to occupy a central place in correctional and forensic psychology and related disciplines (Douglas, Macfarlane, & Webster, 1996). It was not so AUTHORS' NOTE: The authors are grateful to Carrie Till and Darek Dawda for their work on this research. For access to research case files we thank David R. Lyon, Rebecca Dempster Lynne E. Sullivan, and Stephen D. Hart from Simon Fraser Uni- versity, and W Carson Smiley from the Correctional Service of Canada; however the views expressed in this article are solely those ofthe authors. Correspondence regard- ing this article may be addressed to Kevin S. Douglas, Mental Health, Law, and Policy Institute, Simon Fraser University, 8888 University Drive, Burnaby, British Colum- bia, Canada, V5A 1S6; e-mail: kdouglas@arts.sfu.ca. CRIMINAL JUSTICE AND BEHAVIOR, Vol. 26 No. 1, March 1999 3-19 @ 1999 American Association for Correctional Psychology 3 from the SAGE Social Science Collections. All Rights Reserved.

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