Even if you've never heard of the Dunning-Kruger effect, you've definitely seen it in action: the inexperienced politician with strong opinions about global affairs, the celebrity on an anti-science crusade, the self-proclaimed stock-market expert that loses money left and right. The Dunning-Kruger effect is the strange phenomenon that makes unskilled or uneducated people overestimate their abilities.
It's Not Just Other People
Are Stupid People More Confident?
Find out why a lack of knowledge makes you overestimate your abilities.
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Key Facts In This Video
In 1999, David Dunning and Justin Kruger found that people who scored lower on competency tests were more likely to consider themselves very competent. 00:41
Illusory superiority, also known as the Dunning-Kruger effect, has been observed in several fields, from firearm usage to debates. 01:32
Research indicates that competent people are more likely to underestimate their abilities than incompetent people. 02:04
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