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…

The effectiveness and program mechanisms of a whole-school anti-bullying program that builds on the socio-ecological framework were investigated by applying person-oriented methods of data analyses. A longitudinal cluster randomized control study was utilized comprising 1377 adolescents (48.5% girls, M[subscript age] = 11.7) who participated in a…

This study analyzed the mediating role that implicit theories of intelligence and academic self-efficacy may play in the relationship between psychopathology and mathematical performance. The sample consisted of 838 students from first and second year of high school. A numerical calculation test was applied, followed by psychopathology self-report…

Workplace bullying is a widespread phenomenon within Higher Education Institutions (HEIs). Employee tendency to remain silent is one of the most common reactions to workplace bullying. Yet, employee silence in the context of workplace bullying is poorly studied. Building on the Conservation of Resources Theory (COR) and the Learned Helplessness…

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…

We investigated changes in youths' intentions to quit school after following a group-based cognitive behaviour therapy (CBT) based intervention for depressed adolescents in upper secondary school: the Adolescent Coping with Depression Course (ACDC). Data were collected from 228 youths, 133 of whom received the 14-week ACDC intervention and 95 who…

Research highlights the high rates and deleterious outcomes of teen dating and sexual violence (DSV), underscoring the critical role of prevention. School personnel have an important role in preventing DSV among teens. The purpose of this study was to explore the rates and correlates of school personnel's opportunity and actions to intervene in…

Missing data are ubiquitous in studies examining preventive interventions. This missing data need to be handled appropriately for data analyses to yield unbiased results. After a brief discussion of missing data mechanisms, inappropriate missing data treatments and appropriate missing data treatments, we review the current state of missing data…

This study assessed participant, facilitator, and program-level characteristics associated with intervention dosage among women receiving an evidence-based perinatal depression preventive intervention, Mothers and Babies (MB). We also explored how intervention dosage affected the use and maintenance of core skills taught in the six-session…

This study used a cross-lagged panel analysis to explore the effect of impulsivity and academic achievement on the development of suicidal ideation in adolescents using three-time assessments with an interval of 6 months. A total of 211 adolescents (104 boys, 107 girls with a mean age of 13.62 ± 0.68 years in the third assessment) completed the…

Using a three-wave (mean age 14.4, 17.4, and 20.4 years) longitudinal design (N = 1,834; 55.6% females), we set out to map direct and indirect effects of adolescent peer victimization and mental health on academic achievement in early adulthood, and the buffering effect of positive family relations. Data was collected in Sweden 2012 to 2018. We…

Bullying, cyberbullying, and sexual harassment in high school occur in the presence of peers, who often implicitly or explicitly support this perpetration. This study examines the impact of a social norms campaign on personal and perceived peer norms related to bullying, cyberbullying, and sexual harassment. Wilcoxon signed ranks tests indicate…

Mass media campaigns are an effective population-level intervention for preventing tobacco use. However, little evidence exists for whether these campaigns similarly influence demographic subgroups. This study examined the effects of the truth® campaign to reduce tobacco use among demographic subgroups. We used data from a national, continuous,…

Given the COVID-19 pandemic's disproportionate impact on Hispanic individuals in the United States, research examining modifiable psychosocial correlates of COVID-19 preventive behaviors in this population is warranted. Prior research highlights health literacy and health consciousness as integral for the establishment of health-promoting…

Background: Adequate sun safety during childhood is crucial for decreasing skin cancer risk in later life. Although parents are an essential target group in applying sun protection measures for their children, insight into the determinants associated with their sun protection behaviors is limited. Aims: This study aims to identify the most…