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Dunning-Kruger Syndrome is the phenomenon whereby people who have little knowledge systematically think that they know more than others who have much more knowledge. In a phrase, clueless people think they are smart.

Though many people have noticed this, it was rigorously demonstrated in a series of experiments performed by Justin Kruger and David Dunning, then both of Cornell University. Their results were published in the Journal of Personality and Social Psychology in December, 1999.

Their study involved giving people tests of their knowledge in various domains, then asking them how they thought they did. People at the bottom of the results tended to hugely overestimate their abilities. As Dunning and Kruger noted,

"Across 4 studies, the authors found that participants scoring in the bottom quartile on tests of humor, grammar, and logic grossly overestimated their test performance and ability. Although their test scores put them in the 12th percentile, they estimated themselves to be in the 62nd." Meanwhile, people with true knowledge tended to underestimate their competence.

See also

• Self-efficacy

References

• Unskilled and Unaware of It: How Difficulties in Recognizing One's Own Incompetence Lead to Inflated Self-Assessments, Justin Kruger and David Dunning, Cornell University, Journal of Personality and Social Psychology, vol 77, no 6, p 1121-1134 (1999)

• Personality
• Social sciences methodology
• Social psychology