The Predictive Validity of the Two-Tiered Violence Risk Estimates Scale (TTV) in a Long Term Follow-Up of High Risk Federal Offenders
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The reduction of recidivism has been an issue of concern within the criminal justice system in Canada. Several structured risk appraisal measures have been created in order to respond to this need. The Two-Tiered Violence Risk Estimates Scale (TTV) is a measure designed to predict the risk of violent recidivism and to identify risk management areas. The current study examined the predictive validity of the TTV in a sample of Canadian offenders (n = 120). The TTV was compared to the Violence Risk Appraisal Guide (VRAG), the Statistical Information on Recidivism Scale – Revised (SIR-R1), and the Psychopathy Checklist – Revised (PCL-R). Approximately 53% of the sample reoffended violently. The ARE of the TTV produced a small, significant effect for violent recidivism, and the RMI was non-significant. Measure comparisons showed that there were no differences in predictive validity.
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Copyright © 2015 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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