This study examined the effect of a specialized after-school program, the Services to Youth Program (STYP), as one method of preventing the reoccurrence of criminal activity among delinquent youth. Seven African American youth who actively participated in the structured, curriculum-based after-school program were compared with a matched group of seven non-participating youth. The groups were matched for age, gender, race, socioeconomic status, grade level, type of offense, and number of adults in the household. The program met daily after school and on Saturdays for 3 hours each day for a 9-month period with a curriculum focused on causes and processes related to destructive behavior and strategies to prevent, reverse, and/or ameliorate these behaviors. Three instruments were administered at intake and at program termination: (1) the Criminal Behavior Assessment/Reassessment of Risk (a cognitive outcome measure); (2) Profile of High School Students (a cognitive outcome measure); and (3) Program Evaluation Form (an affective outcome measure). At termination, three of STYP participants had reoffended (two misdemeanors and one felony) compared with the nonparticipating youth who had all reoffended with felonies. Findings also suggested STYP participants had improved behavioral self-control and expressed increased satisfaction with the STYP program over time. (DB)