What works in reducing re-offending behavior? 40 years of research points the way forward.

WWI Overview


After more than 40 years of studying correctional programs, experts in criminal justice are able to provide practitioners with the principles of effective interventions to guide the development and operation of juvenile justice programs.

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The DJJ What Works Initiative Residential Pilot Project (WWIRPP) began in the fall of 2004, following the State Advisory Group's (SAG) grant award to the DJJ Residential and Correctional Facilities branch to fund the pilot project.

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What Works Principles

Read about the "5 Principles of Effective Correctional Intervention," including "Risk," "Need," "Treatment," "Responsivity," and "Fidelity."

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Measuring What Works

The Correctional Program Assessment Inventory (CPAI) is an instrument that was developed to assess the degree to which a program conforms to the What Works principles.

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WWI Curriculum

Learn about the What Works Residential Pilot Project Curriculum, including "Thinking for a Change", "Motivational Interviewing," & "Communicating for a Change".

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WWI Links

View links to a few WWI-related sites.

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