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Different Actuarial Risk Measures Produce Different Risk Rankings for Sexual Offenders

Different Actuarial Risk Measures Produce Different Risk Rankings for Sexual Offenders Percentile ranks were computed for N = 262 sex offenders using each of 5 actuarial risk instruments commonly used with adult sex offenders (RRASOR, Static-99, VRAG, SORAG, and MnSOST-R). Mean differences between percentile ranks obtained by different actuarial measures were found to vary inversely with the correlation between the actuarial scores. Following studies of factor analyses of actuarial items, we argue that the discrepancies among actuarial instruments can be substantially accounted for by the way in which the factor Antisocial Behavior and various factors reflecting sexual deviance are represented among the items contained in each instrument. In the discussion, we provide guidance to clinicians in resolving discrepancies between instruments and we discuss implications for future developments in sex offender risk assessment. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Sexual Abuse: A Journal of Research and Treatment SAGE

Different Actuarial Risk Measures Produce Different Risk Rankings for Sexual Offenders

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References (21)

Publisher
SAGE
Copyright
Copyright © by SAGE Publications
ISSN
1079-0632
eISSN
1573-286X
DOI
10.1177/107906320601800408
pmid
17136625
Publisher site
See Article on Publisher Site

Abstract

Percentile ranks were computed for N = 262 sex offenders using each of 5 actuarial risk instruments commonly used with adult sex offenders (RRASOR, Static-99, VRAG, SORAG, and MnSOST-R). Mean differences between percentile ranks obtained by different actuarial measures were found to vary inversely with the correlation between the actuarial scores. Following studies of factor analyses of actuarial items, we argue that the discrepancies among actuarial instruments can be substantially accounted for by the way in which the factor Antisocial Behavior and various factors reflecting sexual deviance are represented among the items contained in each instrument. In the discussion, we provide guidance to clinicians in resolving discrepancies between instruments and we discuss implications for future developments in sex offender risk assessment.

Journal

Sexual Abuse: A Journal of Research and TreatmentSAGE

Published: Oct 1, 2006

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