“…Unfortunately, many programs, including those that target bullying at the group level, show a decline in efficacy from primary to secondary school (Kärnä et al., ; Yeager, Fong, Lee, & Espelage, ). In addition, the stability of peer‐reported victimization increases with age (Pouwels, Souren et al., ). Together, these findings highlight the need for early intervention and prevention before victimization becomes chronic and difficult to change (Hanish & Guerra, ; Rueger et al., ; Smith et al., ).…”