1. The Community Youth Development Study (CYDS) A 24 community randomized controlled trial to test the Communities That Care system. 1 Principal Investigator: J. David Hawkins Social Development Research Group Funded by: National Institute on Drug Abuse National Institute on Alcohol Abuse and Alcoholism Center for Substance Abuse Prevention National Cancer Institute National Institute on Child Health and Development National Institute on Mental Health

2. CTC Effects on Initiation of Problem Behaviors Grade 8 youth from CTC communities were: 33% less likely to start smoking cigarettes 32% less likely to start drinking 25% less likely to start engaging in delinquent behavior 2 …than Grade 8 youth from control communities in a panel followed from Grade 5.

3. 3 CTC Effects on Current Involvement in Problem Behaviors Eighth grade youth in CTC communities: 23% less likely to drink alcohol currently 37% less likely to “binge” (5 or more drinks in a row) in last two weeks. Committed 31% fewer different delinquent acts in past year …than Grade 8 youth from control communities in a panel followed from Grade 5. Hawkins, J. David, Oesterle, Sabrina, Brown, Eric C., Arthur, Michael W., 2009, Archives of Pediatrics and Adolescent Medicine

4. Sustained Effects of CTC after Five Years Compared to control communities, 10 th graders in the panel from CTC communities showed: Less rapidly increasing risk since grade 5, Lower mean levels of targeted risk, Lower incidence of delinquent behavior, alcohol use, and cigarette use, Lower prevalence of past-month cigarette use, Lower prevalence of past-year delinquency, Lower prevalence of past-year violence than their 10 th grade counterparts from control communities. Hawkins et al., 2012, Archives of Pediatrics and Adolescent Medicine

5. Investment in Communities That Care Pays Off $5.30 Investment Today Future Savings $1.00 $2004 Dollars 5 Kuklinski, Briney, Hawkins & Catalano, 2012, Prevention Science