Last Updated：2025/11/29

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(psychology) A cognitive bias by which an unskilled individual suffers from illusory superiority, mistakenly rating their ability as much higher than it actually is.

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Dunning-Kruger effect

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Source Word

Dunning-Kruger effect

Noun

Japanese Meaning

認知バイアスの一種で、能力が低い人が実際よりも自分の能力を過大評価してしまう現象。

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The project's failure was partly blamed on the Dunning-Kruger effect, as overconfident team members underestimated the task's complexity.

Google Translation / DeepL Translation

プロジェクトの失敗は、能力のない人が自分の能力を実際よりはるかに高く評価してしまう認知バイアス、つまりダニング＝クルーガー効果の影響があり、過信したチームメンバーが作業の複雑さを過小評価したことが一因だとされた。

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Sense（1）

Though it grants them the advantage of higher levels of optimism, the Dunning-Kruger effect also hamstrings low performers with an even greater disadvantage: being less aware of their failings, they remain less likely to see the need, and thus make the effort, to improve themselves.

Google Translation / DeepL Translation

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Dunning-Kruger effects

（ plural ）

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Dunning-Kruger effect

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Dunning-Kruger effect

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