In school bullying, witnesses play a fundamental role because their defensive reactions can stop bullying situations. However, a great majority of witnesses remain passive despite their prodefense personal beliefs. To address this gap between witnesses' beliefs and behaviors, we developed and tested two social psychology strategies, namely, the…

An earlier trial of a school-based, preventative intervention, HealthWise South Africa, demonstrated some efficacy in preventing adolescent drinking and smoking in the Western Cape, South Africa. This was followed by the current implementation trial, which examined how implementation support conditions influenced adolescent drinking and smoking…

The purpose of this project was to examine the effect of the implementation of the Mystery Motivator intervention as an interdependent group contingency to decrease disruptive behavior in an urban eighth-grade general education science classroom. The study was conducted using an A-B changing criterion design. The effectiveness of the intervention…

This study evaluated the effects of an eight-session female higher-functioning autism anti-stigma program on the knowledge, attitudes and behavioural intentions of adolescent girls. Participants were seventh-, eighth- and ninth-grade students (N = 273) in a mainstream school. Two-eighth-grade classes were randomly allocated to the intervention…

The Active and Healthy School Program (AHS) can be used to alter the culture and environment of a school to help children make healthier choices. The purpose of this study was to determine the effectiveness of AHS to increase physical activity while decreasing total screen time, increase healthy food choices, and improve knowledge about physical…

Students with emotional and behavioral disorders (EBD) typically exhibit significant behavioral excesses or deficits that interfere with their learning and sometimes that of their peers in the classroom. These behaviors can generally be described as either external and easily noticed (e.g., disruption, aggression) or internal and easily overlooked…

This study reports on a three-year group randomized controlled trial, the Cyber Friendly Schools Project (CFSP), aimed to reduce cyberbullying among grade 8 students during 2010-2012. In each year, 14-15 year old student "cyber" leaders acted as catalysts to develop and implement whole-school activities to reduce cyberbullying-related…

Social psychological interventions in schools have gained popularity in education research for their ability to often dramatically increase student academic performance through simple exercises. Many of these interventions are designed to address stereotype threat, which is defined as "being at risk of confirming, as self-characteristic, a…

The Healthy Youth Places (HYP) intervention targeted increased fruit and vegetable consumption (FV) and physical activity (PA) through building the environmental change skills and efficacy of adults and youth. HYP included group training for adult school site leaders, environmental change skill curriculum, and youth-led FV and PA environment…

This study compared the impact of the Aban Aya Youth Project (AAYP; Archives of Pediatric and Adolescent Medicine 158: 377-384, 2004) social development classroom curriculum (SDC), school/family/community (SC) intervention curriculum, and a health enhancement curriculum (HEC) attention placebo control on changes over time in violent behaviors…

In this article, a process evaluation of a school-based, violence intervention program is presented. The program was modeled after bullying prevention programs described by Daniel Olweus (1993) whose components were implemented to achieve student safety goals. The process evaluation instrument used in this study was developed by a rural Midwestern…

Using an ABAB withdrawal design, a study investigated effects of a simple peer-prompting procedure on reducing or eliminating annoying/disruptive sounds made by a 13-year-old boy with developmental disabilities included in a general eighth-grade classroom. Peer prompting reduced his inappropriate noises, and follow-up data indicate the improvement…

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,…