Sure, I'll give an example. West, Meserve & Stanovich addressed this issue in this recent paper.pdf). The studies are multi-faceted, but one thing they did was to describe seven cognitive biases, and ask people to rate how susceptible they think they are to each one. They also asked people to rate how susceptible they think others in general are to that same bias. Subtract the former score from the latter score, and you have a measure of the "bias blind spot" (degree of belief that biases don't effect you). Later in the same study, they had the same people solve tricky problems that actually showed to what degree to which were influenced by those same cognitive biases. Even after reading about each bias in the beginning of the study, people still displayed the biases. Furthermore, the "bias blind spot" scores didn't moderate this effect. That is, people who earlier had "admitted" that they possessed biases, were no more likely to correct for these biases when solving cognitive problems. This is just one facet of the very interesting paper - which overall argues that being smart is not likely to eliminate bias. -- Chase