It is proposed that differences in rejection attribution could yield variations in subsequent prosocial behavior. To test the attribution hypothesis, 109 participants were randomly assigned to a performance based rejection, a personally based rejection, or a control condition and then worked with an ostensible partner via the Internet to develop uses for a common household item. Prosocial behavior was measured by the number of uses a participant generated (working harder for the team). When generating creative uses, participants in the rejection conditions performed significantly worse than nonrejected participants (F(2,74) = 4.576, p\u3c.05, r2=.11). However, in contradiction to the attribution hypothesis, participants in the 2 rejection conditions did not differ in performance. Explanations for why the rejection attribution hypothesis was not supported are discussed in addition to directions for future research regarding rejection attribution