 In well-regarded studies, Nisbett and Wilson (1977a, 1977b) showed that people sometimes confabulate, that is, they give reasons for evaluative judgments that do not reflect the actual causes of making those judgments. This work again carries two implications: that people are sometimes mistaken in accepting efficacy of what they believe to be their reasons for a judgment, and that they are sometimes mistaken about the real reasons for their behavior.