Objectives: This study determined 4-year postintervention effects of Safe Dates on dating violence, booster effects, and moderators of the program effects.
Methods: We gathered baseline data in 10 schools that were randomly allocated to a treatment condition. We collected follow-up data 1 month after the program and then yearly thereafter for 4 years. Between the 2- and 3-year follow-ups, a randomly selected half of treatment adolescents received a booster.
Results: Compared with controls, adolescents receiving Safe Dates reported significantly less physical, serious physical, and sexual dating violence perpetration and victimization 4 years after the program. The booster did not improve the effectiveness of Safe Dates.
Conclusions: Safe Dates shows promise for preventing dating violence but the booster should not be used.