All of WSIPP's research is published on our website. The Publications page includes every report we've released—from our founding in 1983 to the present. Each report entry includes the title, publication date, abstract, any available supplemental materials, and a downloadable PDF.
WSIPP reports are not updated after publication, and any report older than two years is designated with an “Archived” label.
To explore our benefit-cost and meta-analytic findings, please visit the Benefit-Cost section of the website.
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In 2018, WSIPP’s Board of Directors approved a contract with the Washington State Juvenile Rehabilitation Administration in conjunction with the Community Juvenile Accountability Act Oversight Committee to evaluate a juvenile court evidence-based program. The contract required WSIPP to evaluate the effectiveness of the Washington State Aggression Replacement Training (WSART) program at reducing recidivism for court-involved youth. In addition to evaluating the overall effects, WSIPP was asked to evaluate for whom the program was most effective and under what conditions the program was most effective. This report evaluates the effects of WSART in Washington State juvenile courts from 2005 to 2016. To the extent possible, we evaluated the varying effects of WSART for subpopulations including males and females; White, Black, and Hispanic youth; younger youth and older youth; high-risk youth and moderate-risk youth; and youth assessed using the BOT and youth assessed using the PACT. Finally, we evaluated differences in the effects of WSART by characteristics of WSART program participation including trainer competence and program completion.