Collective efficacy, defined as informal social controls that operate under social norms of trust, is an emerging theoretical concept that has been applied to explain violence rates in neighborhoods, affiliation with deviant peers, partner violence, and adolescent delinquency. This study employed a multilevel design to examine the association…

Background: Drug use has been noted among students in Taiwan during the past decade and schools have a role in preventing or delaying students' drug use. We developed and evaluated a school-based, drug-use prevention program integrating the theory of planned behavior (TPB) and life skills for junior high school students. Methods: We recruited 441…

This paper outlines early findings from the Tasmanian-based Social Norms Analysis Project (SNAP). The Social Norms model is presented as a theoretically informed, evidence-based model for reducing alcohol-related harm in youthful populations by utilising the complex and often positive contributions peer groups make to adolescent health and…

The objectives of this study were to examine outcomes of the Minnesota D.A.R.E. Plus Project on violence-related behaviors among middle school students and mediation analyses that test how the intervention was effective in reducing physical and verbal violence. Twenty-four schools were randomly assigned to the D.A.R.E. middle school curriculum,…