The Wisconsin risk/need classification measures demonstrated adequate predictive validity for this sample of probationers. Recidivism was predicted at statistically significant levels despite the low base rate observed for this small sample (10.5 percent). The Wisconsin system performed particularly well at correctly identifying low risk probationers who would not re-offend during their terms of probation. The classification instrument forecasted supervision progress and confirmed that early terminations of probation supervision were being reserved for cases exhibiting low risk and needs. As expected, risk and need reassessments were superior predictors of recidivism than intake assessments. Contrary to expectations, risk and need did not differ in their contributions to the prediction of recidivism.