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We investigated the effects of a prosocial and an aggressive videogame on children's prosocial behavior. Third-, fourth-, seventh-, and eighth-grade boys and girls (N = 160) were randomly assigned to either a control condition or one of four treatment conditions. In two of the treatment conditions, children played a videogame with prosocial content either singly or cooperatively with another child. In the other two conditions, children played an aggressive videogame either singly or competitively. Subsequent levels of donating and helping were measured. A three-way analysis of variance indicated that older students donated significantly more than did younger students. Children who played either of the aggressive videogames donated significantly less than did those who played prosocial games by themselves. No significant effects were found for helping. Playing the prosocial videogame did not increase prosocial responding, but playing the aggressive videogame tended to suppress this behavior. The failure of the prosocial game to accelerate prosocial responding might be due to the relatively brief treatments used in this study and/or to the particular prosocial videogame utilized.
Chambers et al. (Tue,) studied this question.