New analytical tools have facilitated the exploration of the trajectories of alcohol use; however, there are a limited number of studies that explore early adolescence. A sample of 5,903 youths followed from sixth through eighth grade was used to (1) examine the trajectories of alcohol use and (2) determine the degree to which common correlates…

The purpose of this study was to extend the literature in both substance use implementation and persuasive health communication by examining the extent to which students' need for cognition and impulsive decision-making moderated the relationship between teachers' classroom communication behavior and program outcomes in an evidence-based middle…

This study examined whether the efficacy of "keepin' it REAL", a model program for substance use prevention in schools, was moderated by gender, ethnicity, and acculturation. Gender differences in program efficacy may arise through boys' higher risk of drug use, inadequate attention to girls' developmental issues, or cultural factors…

The Minnesota Drug Abuse Resistance Education (DARE) Plus project augmented the DARE curriculum with community, parent involvement, and extracurricular activity components. Of the 24 schools in the DARE Plus project, the 8 receiving the DARE Plus intervention are examined in this study. The association of participation in the extracurricular…