This study examined hostile attribution bias and a mood-congruity effect and the effects of causal attribution of aversive events on depressed mood and anger. One hundred and seventy-three subjects completed a questionnaire that measured depressive tendencies(SDS), aggressiveness(BAQ), and causal attribution and mood/emotion of unpleasant hypotheticals. Regression analysis revealed no hostile attribution bias or mood-congruity effect. Aggressiveness and causal attribution, however, affected anger in tandem.