Similarity not favorability: the role of donor prototypes in predicting willingness to donate organs while living.

Using an extended Prototype/Willingness Model, we examined the predictors of willingness to donate an organ to a partner/family member and a stranger while living. A questionnaire assessed university students' (N = 284) attitudes, subjective norm, prototype favorability, prototype similarity, moral norm, and willingness to donate organs in each recipient scenario. All variables, except prototype favorability, predicted willingness to donate organs in both situations. Future strategies should emphasise perceived approval from important others for living donation, the consistency of living donation with one's own morals, and encourage perceptions of similarity between oneself and living donors to increase acceptance of living donation.