The original group treatment program for children with PSB protocol was developed by Barbara Bonner, C. Eugene Walker, and Lucy Berliner. This school-age group treatment program was evaluated rigorously by comparing it to a group play therapy approach. Initial outcomes demonstrated improvements with reduced PSB and other nonsexual behavior problems (Bonner, Walker & Berliner, 1999). These youth were then followed up in administrative databases for state law enforcement, juvenile services, and child welfare. In this 10-year follow-up study, children who were randomized to the PSB-CBT™ group treatment were found to be no different from a clinical comparison group (i.e., children referred due to disruptive behavior problems but had no known PSB), both with very low rates of future sexual offenses detected by child welfare, juveniles services, or law enforcement (both around 2% to 3% respectively). The children randomized to the play therapy group had significantly higher rates of future problematic sexual behavior (11%) (Carpentier, Silovsky & Chaffin, 2006). In addition to this research, a small but reasonably rigorous body of PSB treatment effectiveness research has emerged, sufficient to guide recommendations (Bonner et al., 1999; Cohen & Mannarino, 1996, 1997; Pithers, Gray, Busconi & Houchens, 1998; Silovsky, Niec, Bard & Hecht, 2007; St. Amand, Bard & Silovsky, 2008). For research effectiveness and outcomes of the preschool and school-age models, visit the California Evidence Based Clearing House or the Office of Juvenile Justice and Delinquency Prevention Model Programs Guide (MPG).