Do classroom relationships moderate the association between peer defending in school bullying and social-emotional adjustment?

Peer defending has been shown to protect bullied peers from further victimization and social-emotional problems. However, research examining defending behavior has demonstrated positive and negative social-emotional adjustment effects for defending students themselves. To explain these mixed findings, researchers have suggested that associations between defending behavior and social-emotional adjustment may be buffered by protective factors (i.e., defender protection hypothesis) or exacerbated by vulnerability or risk factors (i.e., defender vulnerability hypothesis). Consistent with these hypotheses, the present study aimed to investigate whether relationships with teachers and peers would moderate the association between defending behavior and social-emotional adjustment. This three-wave longitudinal study examined the association between peer nominated defending behavior and later self-reported depressive symptoms and self-esteem in 848 Belgian students in Grades 4-6 (53% girls; M