Evaluating the Predictive Accuracy of Six Risk Assessment Instruments for Adult Sex Offenders

Abstract
Five actuarial instruments and one guided clinical instrument designed to assess risk for recidivism were compared on 215 sex offenders released from prison for an average of 4.5 years. The Violence Risk Appraisal Guide, Sex Offender Risk Appraisal Guide, Rapid Risk Assessment of Sexual Offense Recidivism, and Static-99 predicted general recidivism, serious (violent and sexual) recidivism, and sexual recidivism. The Minnesota Sex Offender Screening Tool–Revised and a guided clinical assessment (Multifactorial Assessment of Sex Offender Risk for Recidivism) predicted general recidivism but did not significantly predict serious or sexual recidivism. On its own, the Psychopathy Checklist–Revised predicted general and serious recidivism but not sexual recidivism. The results support the utility of an actuarial approach to risk assessment of sex offenders.

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