Study of Juvenile Recidivism in Illinois
Supported by a grant from the American Statistical Association and the Bureau of Justice Statistics Small Grants program, research staff from the Illinois SAC recently conducted an in-depth analysis of juvenile recidivism in Illinois. The study examined a sample of youth who had been released from Illinois Department of Juvenile Justice (IDJJ) facilities between 2005 and 2007. Individuals were matched to their arrest and incarceration records to determine criminal history and to measure recidivism after release. The study used multiple measures of recidivism, including rearrest for new offenses, reincarceration in a juvenile facility, and reincarceration in an adult facility. The study also used a number of sophisticated statistical techniques to measure the influence of various characteristics on the different types of recidivism, including Cox proportional hazards models (survival analysis), multilevel regression models, and Markov models. Key findings include: 86% of youth were rearrested within three years of release from IDJJ, 68% of youth were reincarcerated within three years of release from IDJJ, and 64% of first reincarcerations were for technical violations of parole. Three reports based on the study are available on the Illinois SAC website.