A meta-analysis published through the Office of Justice Programs pooled 53 separate studies — 58 distinct effect sizes — to answer a basic question: do reentry programs actually reduce recidivism, and if so, what makes some work better than others?
The topline finding: yes, on average, by about 6%. But the more useful finding is in the details. Programs that started treatment while someone was still incarcerated and then continued that same support into the community outperformed programs that only covered one side of release. Programs that ran at least 13 weeks and specifically targeted higher-risk individuals showed a meaningfully larger effect.
One finding surprised the researchers: whether attendance was voluntary or mandatory made no measurable difference to outcomes. Neither did simply having an aftercare component tacked on — continuity of the actual program mattered more than the label of "aftercare."
The honest takeaway is that reentry programming works, but not automatically and not equally. Design, duration, and continuity across the release date are what separate an effective program from a well-intentioned one.
Source: Office of Justice Programs, "The Impact of Reentry Programs on Recidivism: A Meta-Analysis."
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