The protective and risk effects of parents and peers on substance use, attitudes and behaviors of Mexican and Mexican American female and male adolescents.

This study explores the extent to which parental and peer behaviors and norms may affect substance use, personal anti-drug norms and intentions to use drugs in a group of Mexican heritage preadolescents in the Southwest, and whether these parental and peer influences differ according to gender. Secondary data from a randomized trial of a drug prevention program was used. The sample consisted of 2,733 adolescents. The outcomes were recent alcohol, cigarette, and marijuana use, personal anti-drug norms and intentions to use drugs. In this study, peer variables were more consistently related to the outcomes than parent variables, with the exception of parental injunctive norms which were the most predictive parent factor. Recommendations are provided to further study the protective processes that are maintained through the transition into adolescence and acculturation as a foundation for the design of resiliency-focused prevention interventions.