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Sunday, January 12, 2014

Collaboration Can Breed Overconfidence

Minds for Business
Psychological Science
Originally published November 20, 2013

The researchers found that people working with a partner were more confident in their estimates and significantly less willing to take outside advice. The pairs’ guesses were marginally more accurate than those of the individuals at first.

But after revision (or lack thereof), that difference was gone. Even the combined judgments of four people yielded no better results than those of two or three. Finally, the researchers found that had the pairs yielded to outside input, their estimates would have been significantly more accurate. Their confidence was costly.

The entire article is here.
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