An egocentric bias occurs when one thinks of the world from one’s own point of view and self perception too much. Wishful thinking is a common example of an egocentric bias. Wishful thinking is essentially the belief that one is special. For positive traits, special means having more of the trait than others. In one study, it was found that 8 out of 10 people believed they had above average driving ability. If that’s true, then 2 out of 10 people must be really, really, bad drivers.
Judgements of traits are subject to wishful thinking or egocentric bias more if they are ambiguous than if they are unambiguous. For example, people believe themselves to be more fair (just) than others, and they think of themselves as more emotional than others. However, people don’t necessarily think of themselves as more competent (having more ability, e.g., more intelligence).
Why do people make egocentric biased judgements? Are people motivated to think of themselves as better than others? Not necessarily. One explanation that does not involve motivation goes as follows:
(a) People make judgements based on the information available
(b) People have access to more information about the judgement from their own point of view
(c) Therefore they use more information from their own point of view than from any other point of view. Hence, people make egocentric judgements, because the amount of information available for the judgement is greater for oneself than others, not because one is motivated to think better about oneself than others.