Introduction: Expressions of cyberhate motivated by characteristics such as gender, ethnicity, and religious beliefs are now present and prevalent on social networks. Past research, both in online and offline contexts, has identified that, although there may be an overlap between victims and perpetrators of violence; this is not always the case.…

Bullying victimization is a school problem that warrants attention. While most work has focused on understanding bullies and victims, it is important that research explore how to promote bystander behavior during bullying as a mechanism to deter bullying in schools. Perceptions of the school climate may impact the likelihood of a student's…

Introduction: The use of social media tools is increasing day by day. In addition to its positive use, social media tools are also used in the virtual environment to harm others. This harmful use is noted as cyber-bullying. Determining the factors affecting cyber-bullying is of great importance in terms of contributing to intervention studies.…

This dissertation includes three individual articles that explore the relationship between witnessing bullying and defending behavior among students who are bystanders of bullying. Chapter One provides the rationale and purpose of this dissertation and an overview of the three articles that comprise it. Chapter Two employed a cross-sectional…

This study's goal was to identify patterns of risk and promotive factors across multiple social-ecological domains and their associations with adolescents' problem behaviors (aggression, substance use, and other delinquent behaviors), victimization, and distress symptoms. Participants were a mostly African American (79%) sample of 2711 middle…

In the field of critical bullying studies, norms and normality have been used to explain bullying in a manner that challenges the mainstream conceptualising of bullying. This study concentrates in a more detailed way on how normality and not-normality are connected to bullying and how the students define not-normality as a reason for bullying. I…

This one-year longitudinal study examined the moderating effect of perceived social support from school-based Gay-Straight Alliances in the associations between homophobic cyberbullying involvement (i.e., victimization, bystanding) and academic outcomes (e.g., classroom misconduct, school readiness, academic performance, absenteeism, school…

The aim of the current study was to examine whether moral disengagement and defender self-efficacy at individual level and collective efficacy to stop peer aggression at classroom level were associated with defending and reinforcing in school bullying situations in late childhood. Self-reported survey data were collected from 1060 Swedish students…

The current study explores the role of individual and environmental determinants on students' fear of crime. Based on a large-scale survey among students of a Belgian university (n = 1,463), the relationship between perceived social and physical disorder and the three dimensions of fear of crime (perceived risk of victimization, feelings of…

Students with mental health difficulties are at increased risk for victimization, and this risk may be exacerbated during the transition to middle school, when there is an increase in bullying behaviors. Through a social-ecological lens, the present study investigated how internalizing and externalizing problems in the fall of fifth grade were…

We examined the moderating effect of gender on witnessing bullying, defending, and internalizing symptoms among sixth-grade students at one middle school in the northwestern United States. Results indicated that for females, witnessing bullying was positively associated with depressive symptoms and social anxiety, whereas for males, defending was…

This research aims to examine the relationship between classroom management, classroom climate, and relational aggression and victimization in high school students. A total of 42 teachers and 2168 students from 5 high schools in Shenzhen, China participated in the study. Teachers completed a classroom management style scale, while students…

The current study examined whether youth's perceived bullying norms play a role in friendship dynamics related to bullying and victimization among the fifth and sixth grade (N = 736, 52% girls at Wave 1, N = 677, 52% girls at Wave 2) in elementary schools. Youth completed peer nominations (friendship, bullying, and victimization) and a…

This meta-analysis synthesizes evidence about the associations of affective teacher--student relationships with bullying perpetration and peer victimization. A systematic database search resulted in 65 primary studies (k) that met the inclusion criteria. The final sample included 185,881 students from preschool to high school. Separate multilevel…

This study examined the role of: (1) empathic concern for victims of relational aggression (ECV); and (2) perspective taking (PT) in explaining self- and peer-reported relational aggression (RA) and relational inclusion (RI) in a sample of 345 adolescents. The direct association among ECV, PT and self- and peer-reported RA and RI was investigated.…