Established in 1996 at the Center for the Study and Prevention of Violence (CSPV) at the University of Colorado at Boulder, the Blueprints for Violence Prevention [1] program monitors the effectiveness of prevention, early intervention and treatment programs in reducing adolescent violent crime, aggression, delinquency, and substance abuse.
Blueprints have so far reviewed more than 600 programs. Eleven have been designated 'model' programs and another 18 rank as 'promising'. Programs are selected according to three criteria: evaluation by experimental design or randomised controlled trial; proven sustained impact on child development well beyond the intervention, and evidence of replication across several sites. Additional criteria include analysis of mediating factors and costs versus benefits.
Links:
[1] http://www.colorado.edu/cspv/blueprints/index.html