Evidence-Based Adult Corrections Programs: What Works and What Does Not

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This study provides a comprehensive review of evidence-based programs for adult offenders. We asked a simple question: What works, if anything, to lower the criminal recidivism rates of adult offenders? To provide an answer, we systematically reviewed the evidence from 291 rigorous evaluations conducted throughout the United States and other English-speaking countries during the last 35 years.

We find that some types of adult corrections programs have a demonstrated ability to reduce crime, but other types do not. The implication is clear: Washington’s adult corrections system will be more successful in reducing recidivism rates if policy focuses on proven evidence-based approaches.