Dunning-Kruger Effect
A cognitive bias concept in psychology, proposed by David Dunning and Justin Kruger in 1999. It describes the tendency of individuals with lower ability to systematically overestimate their competence due to limited metacognitive capacity, while individuals with higher ability tend to more accurately recognize their own limitations.
Timeline (last 90 days)
The Dunning-Kruger effect was originally proposed by psychologists David Dunning and Justin Kruger in 1999 at Cornell University.
The original research subjects of the Dunning-Kruger effect were students who performed poorly in logical reasoning, grammar, and sense of humor; the experiment found that these students overestimated both their absolute performance and their relative ranking.
The core mechanism of the Dunning-Kruger effect is a metacognitive deficit — the cognitive skills required to judge one's own ability are highly overlapping with the cognitive skills required to perform the task itself.
Subsequent research has questioned the universality of the Dunning-Kruger effect, suggesting that some results may be influenced by statistical artifacts such as regression to the mean, and cross-cultural studies show that the effect size varies.
The Dunning-Kruger effect was proposed in 1999 by Cornell University psychologists David Dunning and Justin Kruger, and refers to the phenomenon whereby people with lower cognitive ability tend to overestimate their own competence, while experts tend to underestimate theirs.
All Facts (5)
The Dunning-Kruger effect was originally proposed by psychologists David Dunning and Justin Kruger in 1999 at Cornell University.
50%UnverifiedThe original research subjects of the Dunning-Kruger effect were students who performed poorly in logical reasoning, grammar, and sense of humor; the experiment found that these students overestimated both their absolute performance and their relative ranking.
50%UnverifiedThe core mechanism of the Dunning-Kruger effect is a metacognitive deficit — the cognitive skills required to judge one's own ability are highly overlapping with the cognitive skills required to perform the task itself.
50%UnverifiedSubsequent research has questioned the universality of the Dunning-Kruger effect, suggesting that some results may be influenced by statistical artifacts such as regression to the mean, and cross-cultural studies show that the effect size varies.
50%UnverifiedThe Dunning-Kruger effect was proposed in 1999 by Cornell University psychologists David Dunning and Justin Kruger, and refers to the phenomenon whereby people with lower cognitive ability tend to overestimate their own competence, while experts tend to underestimate theirs.
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