There is strong evidence that Functional Family Therapy (FFT) reduces recidivism and substance abuse among delinquent youth (Blueprints, Waldron 2008). FFT only reduces recidivism more than usual treatment when therapists adhere strictly to the program’s model (Sexton 2010). FFT reduces youths’ delinquent and violent behavior and the likelihood of later adult criminality (Blueprints).