Children’s ability to demonstrate prosocial behaviourtowards others plays an important role in their socialfunctioning and social competence, which is necessaryfor successful interpersonal relationships andsocial adjustment throughout their lives (Sallquist,Eisenberg, Spinrad, Eggum, & Gaertner, 2009).Although the causes of prosocial behaviour havebeen extensively researched (Kurzban, Burton–Chellew, & West, 2014), studies of prosocial behaviourduring adolescence are especially importantbecause the rapid and multiple changes associatedwith this period create a heightened potential forboth positive and negative outcomes. Becausesociety’s formal standards and rules do not alwaysensure prosocial behaviour (Carlo, Knight, McGinley,Zamboanga, & Jarvis, 2010), educators shouldhelp adolescents develop the positive social skillsand positive thinking that underlie prosocialbehaviour.