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      Predicting Recidivism in Sex Offenders Using the SVR-20: The Contribution of Age-at-release

      Barbaree, Howard E.; Langton, Calvin M.; Blanchard, Ray; Boer, Douglas Pieter
      DOI
       10.1080/14999013.2008.9914403
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      Barbaree, H.E., Langton, C.M., Blanchard, R. & Boer, D.P. (2008). Predicting recidivism in sex offenders using the svr-20: the contribution of age-at-release. International Journal of Forensic Mental Health, 7(1), 47-64.
      Permanent Research Commons link: https://hdl.handle.net/10289/6308
      Abstract
      Sex offenders (N = 468) were released from custody and recidivism outcome was recorded. The Sexual Violence Risk-20 (SVR-20) was scored for each offender and the relationship between age-at-release and SVR-20 item and total scores was examined. SVR-20 total scores were not correlated with age-at-release (r = .-057). SVR-20 scores were combined with a score representing the age of the offender at their release from custody. On the basis of ROC analysis, predictive accuracy was significantly enhanced when age-atrelease was included in the risk score. We suggest that the SVR-20, and perhaps other similar risk instruments, could be improved by including age-at-release information. We discuss the possibility that the advantage obtained by empirical actuarial instruments may be due in part to their close relation with age-at-release.
      Date
      2008
      Type
      Journal Article
      Publisher
      Routledge
      Collections
      • Arts and Social Sciences Papers [1423]
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