Peer victimization in schools most often occurs in the presence of bystanders. When bystanders intervene on behalf of the victims, they are often successful in stopping the victimization. Defender self-efficacy (i.e., the belief in one's ability to successfully defend victims) has consistently been associated with greater defending and less…

This study examined beliefs about aggression and self-efficacy for nonviolent responses as mediators of longitudinal relations between exposure to violence and physical aggression. Participants were a predominantly African American (79%) sample of 2705 early adolescents from three middle schools within urban neighborhoods with high rates of…

Assessing change in campus interpersonal violence over time is an important step to understand the nature and prevalence of students' victimization experiences. Using a repeated cross-sectional campus survey of interpersonal violence from a large southern university, this article tracks the change of students' victimization experiences over a…

We examined bullying victimization spanning from before the pandemic to the two school years post COVID-19 onset in adolescents. We used survey data from Canadian secondary school students collected during the 2019-20, 2020-21, and 2021-22 academic years. Generalized Estimating Equations models were used to estimate the population average odds of…

Social network analysis (SNA) consists of a broad set of frameworks and methods to assess how direct and indirect relationships influence individual functioning. Although interest in SNA has steadily increased in the psychological sciences, school psychology has not kept pace. This article provides a general overview of core SNA concepts,…

Developmental trajectories of bullying perpetration were examined across 5 waves of longitudinal panel data among Midwestern middle school students. This study explained an unobserved heterogeneity of subgroups, each having the similar pattern of trajectories and investigated antecedents and consequences of class membership. Growth-mixture…

The aims of the current study were to provide the first Australian prevalence estimates of sexual harassment in adolescents, explore gender differences in form and frequency of harassment, and investigate demographic and weight status correlates. A total of 4098 adolescents (47.3% boys), aged 11 to 19 years from government and non-government…

A growing body of empirical research on teacher victimization indicates that it is widespread and yields negative consequences. However, limited research has investigated the relationship between teacher victimization and turnover. In this study, using longitudinal data from approximately 1,300 teachers in a metropolitan area in Texas, USA, we…

Victimization and problem behaviors during middle school detrimentally influence student learning. However, less is known about how they may cooccur and collectively affect high school graduation and whether the interrelationships vary by gender. Using data from a nationally representative cohort of seventh-grade students from the National…

The papers making up this Special Section reveal important findings and begin to fill gaps in existing literature about children's and young people's understanding and developing beliefs about socio-economic inequality and poverty. We draw on our research experience with children growing up in poverty in Ethiopia, India, Peru, and Vietnam (Young…

The current study examined longitudinal relations between overt and relational victimization, sadness and anger dysregulation, and depressive and anxiety symptoms across 6 months among an ethnically diverse sample of sixth graders (N = 485; 48% male; 65% African American). No direct longitudinal relations were found between peer victimization and…

Immigrant youth are at risk of experiencing harassment in school; however, we have only limited understanding of what makes youth harass their peers on ground of their ethnic origin. To address this major limitation, we examined (a) whether youth's negative attitudes toward immigrants impact their engagement in ethnic harassment over time and (b)…

Although there is growing recognition of the problem of dating violence, little is known about how it unfolds among young adolescents who are just beginning to date. This study examined classes (subgroups) and transitions between classes over three time points based on dating violence, bullying, and sexual harassment perpetration and victimization…

Bullying is the most common form of interpersonal violence facing youth in schools, and recent school-based intervention efforts have shown only limited success in reducing such behavior. Accordingly, this article considers the utility of Albert Bandura's theory of moral disengagement in understanding bullying behavior among children and…

School violence and bullying are two public health concerns with consequences for youth in and out of school, for families, students, and community members. In this article, a social-ecological framework is briefly described as a way to understand bullying and school violence; then the National Center for Educational Statistics (NCES) longitudinal…