Many victimized youngsters are at risk of developing internalizing problems, and this risk seems to be especially pronounced when they are genetically vulnerable for these problems. It is unclear, however, whether protective features of the school environment such as anti-bullying classroom policies and teacher's perceived self-efficacy in handling bullying situations can mitigate these negative outcomes. Using a genetically informed design based on twins, this study examined the potential moderating role of classroom anti-bullying policies and teachers' perceived self-efficacy in handling bullying situations in regard to the additive and interactive effects of peer victimization and genetic vulnerability on anxiety symptoms. To this end, 208 monozygotic and same-sex dizygotic twins (120 girls) rated their level of anxiety and peer victimization in grade 6 (mean age = 12.1 years, SD = 2.8). Teachers rated their self-efficacy in handling bullying situations and the extent of anti-bullying classroom policies. Multilevel regressions revealed triple interactions showing that genetic disposition for anxiety predicted actual anxiety for twins who were highly victimized by their peers, but only when their teachers had low perceived self-efficacy in handling bullying situations or when anti-bullying classroom rules were absent or rarely enforced. In contrast, for victimized youth with teachers who perceive themselves as effective or in classrooms where anti-bullying classroom policies were strongly enforced, genetic disposition for anxiety was not associated with actual anxiety symptoms. Anti-bullying programs should continue to promote teachers' involvement, as well as the enforcement of anti-bullying classroom policies, in order to diminish peer victimization and its related consequences.

This study investigated the effects of online schooling and screen-based activities on Canadian children’s COVID-19-related trauma and generalized anxiety symptoms and how parents’ coping strategies influenced these associations. The participants were 121 Canadian children aged from 7 to 12. Parents were asked to report on their children’s school attendance, screen-based activities, and trauma and generalized anxiety symptoms, as well as their own coping strategies during the COVID-19 pandemic. Online schooling was associated with less trauma and generalized anxiety symptoms in children than school non-attendance. Screen-based activities were not directly associated with children’s trauma and anxiety symptoms, but the way parents coped with pandemic stressors moderated these associations. Parents’ active and adaptive coping strategies mitigated the effects of school non-attendance and increased screen-based activity use on children’s COVID-19-related symptoms. The findings not only highlight the detrimental effects of complete school closures, but they also underscore the importance of better equipping parents to cope with pandemic stressors. The findings also suggest that virtual school attendance might have similar benefits to in-person attendance, as it appears to protect against adverse mental health outcomes.

This study used a genetically controlled design to examine the direction and the magnitude of effects in the over–time associations between perceived relationship quality with mothers and adolescent maladjustment (i.e., depressive symptoms and delinquency). A total of 163 monozygotic (MZ) twins pairs (85 female pairs, 78 male pairs) completed questionnaires at ages 13 and 14. Non–genetically controlled path analyses models (in which one member of each twin dyad was randomly selected for analyses) were compared with genetically controlled path analyses models (in which MZ–twin difference scores were included in analyses). Results from the non–genetically controlled models revealed a) child–driven effects in the longitudinal associations between adolescent perceived maternal support and depressive symptoms, and b) parent–driven and child–driven effects in the longitudinal association between perceived maternal negativity and adolescent delinquent behaviors. However, results from the genetically controlled models revealed only child–driven effect, suggesting that, purported parent–driven effects were a product of error arising from potential gene–environment correlations (rGE).