Past reviews of cyberbullying preventative interventions have critiqued the field regarding scientific rigor, and a meta-analysis found that randomized controlled trials (RCTs) of such interventions were more effective than non-RCTs. However, no review has examined the risk of bias, dosage, modality, and delivery context of such programs to date.…

Evidence suggests that cyberbullying among school-age children is related to problem behaviors and other adverse school performance constructs. As a result, numerous school-based programs have been developed and implemented to decrease cyberbullying perpetration and victimization. Given the extensive literature and variation in program…

This study synthesized 14 published and unpublished group design and single-case design studies on bullying interventions for individuals with disabilities. The specific objectives were to examine the general characteristics and design qualities of the studies, quantify the magnitude of the intervention effects, and identify potential moderating…

Even though teachers are key figures of a program's effectiveness, most intervention studies have not focused explicitly on the effects of antibullying programs at teacher level. We conducted a meta-analysis into the effects of school-based antibullying programs on determinants of teacher intervention, including teachers' attitudes towards…

Peer bullying in schools is a significant public health problem that contributes to poor health and wellbeing outcomes for those who bully or are bullied. Meta-analyses of the efficacy of secondary school bullying prevention interventions have typically found no effects or an increase in student bullying. Consequently, few secondary school studies…

Previous studies so far have investigated various aspects of cyberbullying. Using meta-analytic approaches, the study was primarily to determine the target factors predicting individuals' perpetration and victimization in cyberbullying. A meta-analysis of 77 studies containing 418 primary effect sizes was conducted to exam the relative magnitude…

Bullying is a pervasive problem that impacts children and youth in schools involved as perpetrators, victims, and bystanders. This paper synthesizes findings from the empirical literature, including meta-analyses, to examine the evidence for bullying prevention and intervention approaches with attention to developmental levels (preschool,…

Background: Bullying research has gained a substantial amount of interest in recent years because of the implications for child and adolescent development. Aim and sample: We conducted a meta-analysis of traditional and cyberbullying studies in the Republic and North of Ireland to gain an understanding of prevalence rates and associated issues…

This meta-analysis synthesized results about the association between empathy and defending in bullying. A total of 20 studies were included, with 22 effect sizes from 6 studies that separated findings by the defender's gender, and 31 effect sizes from 18 studies that provided effects for the total sample were included in the analysis. The weighted…

Background: Bullying is a significant problem in schools and measuring this concept remains problematic. The purposes of this study were to (1) identify the published self-report measures developed to assess youth bullying; (2) evaluate their psychometric properties and instrument characteristics; and (3) evaluate the quality of identified…

School bullying and delinquent behaviors are persistent and pervasive problems for schools, and have lasting effects for all individuals involved (Copeland et al., "JAMA Psychiatry" 70:419-426, 2013; Espelage et al., "J Res Adolesc" 24(2):337-349, 2013a). As a result, policymakers and practitioners have attempted to thwart…

This meta-analysis synthesized bullying prevention programs' effectiveness at increasing bystander intervention in bullying situations. Evidence from 12 school-based programs, involving 12,874 students, indicated that overall the programs were successful (Hedges's g = 0.20, 95% confidence interval [CI] = 0.11 to 0.29, p = 0.001), with larger…

In 2004, a set of validated guidelines for school bullying prevention and management was released by the Child Health Promotion Research Centre in Australia to guide schools' action to prevent and manage bullying behaviours. At this time little was known about cyber and other forms of covert bullying behaviours. These guidelines were updated in…

The occurrence of violent behaviors and bullying in schools continues to be a recognized problem among students and school personnel. The concern caused by these behaviors have led many schools to implement anger management and other impulse control based programs for at-risk students in an effort to prevent many of these incidences. This study…

The research area around aggression and violence in schools, and especially that on school bullying, has grown enormously in the last 30 years. There are good grounds for concern about these issues, given the negative effects of school bullying on mental health and in the more extreme cases, links to suicides. Intervention and prevention programs…