The purpose of this case study is to explore effects of digital gamification on engagement and achievement in a third-grade social studies course for students of multiple nationalities and with varied native languages attending the English language international branch of a private, affluent school in eastern China. The case study is framed by…

Peer influence and social interactions can give rise to spillover effects in which the exposure of one individual may affect outcomes of other individuals. Even if the intervention under study occurs at the group or cluster level as in group-randomized trials, spillover effects can occur when the mediator of interest is measured at a lower level…