Dunning–Kruger effect

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The Dunning–Kruger effect is a bias in thinking, usually where a person thinks they know more than they do.

It is a psychological effect in which people don't realize their level of knowledge on a subject. People who know little about a subject think that they know more than they actually know. Also, people who know a lot about a subject may think that they know less than they do.

This effect was shown in an experiment that was done by Justin Kruger and David Dunning at Cornell University.[1]

The investigators said:

"The miscalibration of the incompetent stems from an error about the self, whereas the miscalibration of the highly competent stems from an error about others".[1]

References[change | change source]

  1. 1.0 1.1 Kruger, Justin; Dunning, David 1999. Unskilled and unaware of It: how difficulties in recognizing one's own incompetence lead to inflated self-assessments. Journal of Personality and Social Psychology 77 (6): 1121–34. [1]