Using a randomized controlled trial, we investigated changes in both sexual harassment (SH) perpetration and victimization of 2104 middle school students in New York City who received divergent saturation and dosage levels of "Shifting Boundaries," an SH prevention program, which was represented by the length of the program. We assessed…

Universal and selective preventive interventions targeting youth behavioral problems have shown crossover effects on suicide risk, the second leading cause of death among youth. However, the mechanisms that explain this long-term unanticipated benefit are understudied and unclear. The current study examines the crossover effects of PROSPER, a…

Determining the factors that influence implementation of school-based wellbeing and health programs is essential for achieving desired program effects. Using a convergent mixed-methods, multiple informant design, this study considered factors that influence implementation of health programs for ninth grade students and in what ways implementation…

Background: Effective implementation strategies are needed to enhance the success of evidence-based prevention programs. The current study evaluates the effects of two implementation strategies on teachers' implementation of an evidenced-based HIV intervention. Methods: Using our 7-item pre-implementation school screening tool, we identified…

Large-scale, evidence-based interventions face challenges to program fidelity of implementation. We developed implementation strategies to support teachers implementing an evidence-based HIV prevention program in schools, Focus on Youth in The Caribbean (FOYC) and Caribbean Informed Parents and Children Together (CImPACT) in The Bahamas. We…

The goal of the current study is to examine the degree to which measures of quality of implementation and student engagement moderate pretest--posttest changes in mediating variables that are targeted by DARE "keepin' it REAL." DARE officers (10 elementary school, five middle school) taught DARE "keepin' it REAL lessons to 1,017…

Recent research has suggested the importance of understanding for whom programs are most effective (Supplee et al., 2013) and that multidimensional profiles of risk and protective factors may moderate the effectiveness of programs (Lanza & Rhoades, 2012). For school-based prevention programs, moderators of program effectiveness may occur at…

This study evaluated direct and indirect effects of the Family Check-Up Online (FCU-O) across two distinct randomized trials with middle school youth and families. The FCU-O is a digital health adaptation of the Family Check-Up that is delivered in a brief, online format with supportive coaching. The FCU-O was delivered to parents of middle school…

The effect of the "Adapted-Coping with Stress" (A-CWS) intervention on social support coping was examined, using a randomized controlled trial design. The participants were 410 ninth-grade students (ages 14 to 16 years and mostly African American) living in low-resourced neighborhoods. Participants were randomly assigned 1:1 to either…

This study reports on the feasibility and acceptability of a social justice infused service-learning (S-L) program to promote Black adolescent mental health and educational equity. We convened a community advisory board to help adapt and pilot test, via open trial mixed method design, an evidence-based service-learning program for Black middle…

Substance use in adolescence is a significant public health issue, particularly in early-to-mid adolescence, which represents a window of risk in the etiology of substance abuse and dependence. Substance use during this development period often results from affiliation with deviant peers, who model, facilitate, and reinforce use. Existing…

Bullying is a major health problem. The KiVa antibullying program has been evaluated in Finland and other European countries, showing preventive effects on self-reported bullying victimization and perpetration. No evaluations of this program have been conducted in Latin America. A cluster randomized controlled trial was conducted at socially…

This article reports on effects of two earthquakes in Mexico on adolescents attending middle school. The earthquakes struck in close succession during the implementation of a school-based prevention program, providing an opportunity to assess emotional distress due to the earthquakes and whether the life skills taught in the program affected how…

This study examined the relation between both implementation fidelity and quality and the outcomes of two different anti-bullying interventions targeting distinct processes involved in bullying: moral disengagement and social norms. In total, 34 French-speaking Belgian teachers from six elementary schools were trained to deliver either the moral…

As evidence-based interventions (EBIs) become more widely disseminated, fidelity of implementation (FOI) often wanes. This study explores the association between FOI and malleable variables within classrooms that could be targeted to optimize resources without compromising FOI as school-based EBIs are disseminated across real-world settings. We…