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Biased self perception
People are often biased in their self-perceptions, failing to assess themselves accurately. The most well-known and thoroughly researched bias is self-enhancement (Sedikides & Gregg, 2008), which is best illustrated by the tendency for people to believe that they are better than the average person (Alicke & Govorun, 2005). This bias is pervasive and has important implications for physical, emotional, and social well-being (Baumeister, Campbell, Krueger, & Vohs, 2001).