Sexual Offender Treatment Effectiveness Within Cognitive-Behavioral Programs: A Meta-Analytic Investigation of General, Sexual, and Violent Recidivism.

The current sexual offender literature focuses on recidivism reduction in an effort to increase public safety. While cognitive-behavioral therapy (CBT) programs are considered a mainstream treatment method, it is essential to study recidivism as an indicator of treatment effectiveness. This meta-analysis examines research published since 1970 to determine the overall effectiveness of treatments in reducing recidivism among adult male sexual offenders. Decade of implementation and CBT treatment features are also assessed as moderator variables. The results from the 25 studies identified were converted into 42 weighted effect sizes utilizing a random-effects model. Significant overall effect sizes were found for sexual and violent/combination recidivism; however, multiple indices indicate heterogeneity in the effect sizes. Significant differences were found in the overall effectiveness of the treatments by decade, and the treatments delivered during the 1990s were found to be related to lower levels of sexual and violent/combination recidivism.