Group contingencies are well established as methods for reducing disruptive classroom behaviors and increasing academic behaviors. However, their role in increasing prosocial behaviors has not yet been explored to the same extent. We conducted a systematic review of the single-case literature to synthesize the types of prosocial and antisocial behaviors targeted in school settings, the short-term and long-term behavioral contingencies used to target these behaviors, and the quality of the literature. We searched five databases for studies exploring the use of group contingencies to increase prosocial behaviors or decrease antisocial behaviors in children. Our narrative synthesis of the twenty-two included studies noted contingencies employed in these interventions consisted of either positive reinforcement or a combination of positive reinforcement and positive punishment. Of the 22 studies included for review, none met the What Works Clearinghouse Design Standards without reservations. Interobserver agreement and demonstration of effects over time were the most commonly unmet design standards. Future research should seek to encourage greater focus on both prosocial behavior and positive behavior change mechanisms.