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…

Schools offer an advantageous setting for the prevention, early identification, and treatment of mental health problems for youth. However, school mental health (SMH) services are typically not based on evidence for effectiveness, nor are they efficiently delivered, with SMH practitioners (SMHPs) able to only treat a small number of students in…

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…

This study aimed to examine the efficacy of school-based e-cigarette preventive interventions via a systematic review and meta-analysis. We searched Medline, Embase, PsycINFO, Scopus, CINAHL, Cochrane, and clinical trial registries for studies published between January 2000 and June 2023 using keywords for e-cigarettes, adolescents, and school. Of…

Suicide is the fourth leading cause of death among adolescents, globally. Though post-primary, school-based suicide prevention (PSSP) has the potential to be a key strategy for preventing adolescent suicidal thoughts and behaviours (STBs), there are persisting challenges to translating PSSP research to practice. Intervention and contextual factors…

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…

Systemic racism is pervasive in US society and disproportionately limits opportunities for education, work, and health for historically marginalized and minoritized racial and ethnic groups, making it an urgent issue of social justice. Because systemic racism is a social determinant of health prevalent across multiple social and institutional…

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 evaluates El Camino, a goal-setting sexual health promotion program developed for Latino youth. A cluster randomized controlled trial was conducted in grades 9-12 in 68 classrooms (n = 746 students) across 11 schools in Maryland with large populations of Latino students. A total of 208 students were lost to follow-up, leaving 538…

Many sexual health programs transitioned to virtual implementation during the COVID-19 pandemic. Despite its devastation, the pandemic provided an opportunity to learn about virtual compared to in-person implementation of a sexual health promotion program--El Camino. This study assessed differences in program attendance, engagement, quality, and…