S13-04 - Risk reductions in dangerous and severe personality disordered forensic in-patients measured with the HCR-20 violence risk assessment scheme

2010 ◽  
Vol 25 ◽  
pp. 35 ◽  
Author(s):  
K. Sheldon ◽  
J. Gallagher
1999 ◽  
Vol 26 (1) ◽  
pp. 3-19 ◽  
Author(s):  
KEVIN S. DOUGLAS ◽  
CHRISTOPHER D. WEBSTER

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 violence risk assessments in correctional samples.


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