دانلود مقاله ISI انگلیسی شماره 74252
عنوان فارسی مقاله

اعتماد به نفس کاذب در تخمین فاصله: شما چه تخصصی می خرید؟

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
74252 2008 13 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
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عنوان انگلیسی
Overconfidence in interval estimates: What does expertise buy you? ☆
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Organizational Behavior and Human Decision Processes, Volume 107, Issue 2, November 2008, Pages 179–191

کلمات کلیدی
اعتماد به نفس کاذب؛ تخصص؛ تخمین فاصله
پیش نمایش مقاله
پیش نمایش مقاله اعتماد به نفس کاذب در تخمین فاصله: شما چه تخصصی می خرید؟

چکیده انگلیسی

People’s 90% subjective confidence intervals typically contain the true value about 50% of the time, indicating extreme overconfidence. Previous results have been mixed regarding whether experts are as overconfident as novices. Experiment 1 examined interval estimates from information technology (IT) professionals and UC San Diego (UCSD) students about both the IT industry and UCSD. This within-subjects experiment showed that experts and novices were about equally overconfident. Experts reported intervals that had midpoints closer to the true value—which increased hit rate—and that were narrower (i.e., more informative)—which decreased hit rate. The net effect was no change in hit rate and overconfidence. Experiment 2 showed that both experts and novices mistakenly expected experts to be much less overconfident than novices, but they correctly predicted that experts would provide narrower intervals with midpoints closer to the truth. Decisions about whether to consult experts should be based on which aspects of performance are desired.

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