The relationship between inflated personal responsibility and exaggerated danger expectancies in obsessive-compulsive concerns

The association between responsibility for a negative outcome, perceived se verity of the outcome and perceived likelihood of the outcome was examined in a sample of 70 undergraduate students. Participants were asked to rate t he likelihood and severity of 10 negative outcomes, five related to contami nation and five related to checking. Thirty-eight participants completed a version of the questionnaire that presented the subject as responsible for the action that may lead to a negative outcome ('personally responsible' gr oup). The remaining 32 completed a version of the questionnaire that presen ted someone else performing the actions that may lead to a negative outcome ('other responsible' group). Significant differences emerged between the personally responsible and othe r responsible groups for severity of outcome ratings but not for likelihood of outcome ratings. Specifically, for both washing and checking concerns, participants in the personally responsible group rated the severity of the potential negative outcome as greater than did those in the other responsib le group. The results support the claimed general tendency for individuals to regard an outcome as more aversive if they are personally responsible fo r that outcome, rather than someone else being responsible. The results sug gest that, in general, increasing perceptions of personal responsibility wi ll increase cost or severity estimates in subjective danger calculations, a nd that responsibility may influence OCD phenomena in this way. Finally, th e results suggest that attempts to manipulate responsibility in the laborat ory may be confounded by necessarily impacting on cost estimates, and there fore on danger expectancies. (C) 2000 Elsevier Science Ltd. All rights rese rved.