Effectiveness of a Sex Offender Treatment Programme: A Risk Band Analysis

Anna Woodrow, David Bright

    Research output: Contribution to journalArticlepeer-review

    16 Citations (Scopus)


    This article reports an evaluation of a New South Wales Department of Corrective Services custody-based treatment programme for adult male sexual offenders. A risk band analysis was used to compare observed and predicted sexual and violent recidivism rates in a sample of 117 treated and released offenders. Risk bands and predicted recidivism were determined using the Static-99 risk assessment measure. Results demonstrated that during an average follow-up period of 3.75 years, observed sexual recidivism rates were lower than Static-99 predictions for the overall sample (8.5% vs. 26%). The same pattern was observed for violent recidivism (12.8% vs. 36%). At each Static-99 level of risk (low, low-moderate, moderate-high, and high), observed sexual and violent recidivism rates were lower than predicted rates. These findings were consistent with the general consensus that well-implemented cognitive-behavioural treatment can have a positive effect on offending behaviour.

    Original languageEnglish
    Pages (from-to)43-55
    Number of pages13
    JournalInternational Journal of Offender Therapy and Comparative Criminology
    Issue number1
    Publication statusPublished - Feb 2011


    • risk band analysis
    • sex offender
    • treatment


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