This study examined multiple risk behaviors (violence, delinquency, and substance use) among 240 African American and 262 Hispanic preadolescent boys from urban schools in the Midwest United States. Latent transition analysis allowed patterns of multivariate risk to emerge uniquely within and across these ethnic groups, highlighting patterns for…

The Gang Resistance Education and Training (G.R.E.A.T.) program is a gang- and delinquency-prevention program delivered by law enforcement officers within a school setting. Originally designed in 1991 by Phoenix-area law enforcement agencies to address local needs, the program quickly spread across the United States. In this article, we describe…