The effectiveness of treatment for sexual offenders: A comprehensive meta-analysis

  title={The effectiveness of treatment for sexual offenders: A comprehensive meta-analysis},
  author={Friedrich L{\"o}sel and Martin Schmucker},
  journal={Journal of Experimental Criminology},
The article reports a meta-analysis on controlled outcome evaluations of sexual offender treatment. From 2,039 documents published in five languages, 69 studies containing 80 independent comparisons between treated and untreated offenders fulfilled stepwise eligibility criteria (total N = 22,181). Despite a wide range of positive and negative effect sizes, the majority confirmed the benefits of treatment. Treated offenders showed 6 percentage points or 37% less sexual recidivism than controls… 
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