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Overconfidence Signals

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This is a blog on why we believe and do what we do, why we pretend otherwise, how we might do better, and what our descendants might do, if they don't all die.
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Overconfidence Signals

Robin Hanson
Sep 11, 2010
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Overconfidence Signals

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We test three different theories about observed relative overconfidence. The first theory notes that simple statistical comparisons … are compatible with a Bayesian model. … Data on 1,016 individuals’ relative ability judgments about two cognitive tests rejects the Bayesian model. The second theory … We test an important specific prediction of [self-image concern] models: individuals with a higher belief will be less likely to search for further information about their skill, because this information might make this belief worse. Our data also reject this prediction. The third theory is that overconfidence is induced by the desire to send positive signals to others about one’s own skill. … Personality traits strongly affect relative ability judgments in a pattern that is consistent with this. … Overconfidence in statements is most likely to be induced by social concerns than by either of the other two factors. (more; HT Tyler)

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Overconfidence Signals

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Overconfidence Signals

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Overcoming Bias Commenter
May 15

Off-topic, but Chip Smith has an extended criticism of some of Robin's recent pro-natalist writings:http://hooverhog.typepad.co...

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Overcoming Bias Commenter
May 15

It's probably not conscious at all. If it was conscious, it would defeat the purpose.

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