Two methods of reducing overconfidence |
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| Affiliation: | 1. Department of Internal Medicine, Division of Cardiology, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, TX, USA;2. Center for Clinical and Translational Sciences, The University of Texas Health Science Center at Houston, USA;3. Department of Biomedical Sciences, The University of Texas Medical School at Houston, USA;4. Memorial Hermann Heart and Vascular Institute–Texas Medical Center, USA;5. Translational Psychiatry Program, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA;6. Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston (UTHealth), Houston, TX, USA;7. Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, USA.;8. Laboratory of Neurosciences, Graduate Program in Health Sciences, Health Sciences Unit, University of Southern Santa Catarina (UNESC), Criciúma, SC, Brazil;9. Center of Excellence on Mood Disorders, Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston (UTHealth), McGovern Medical School, Houston, TX, USA;1. Sambhram Academy of Management Studies, Bangalore, India;2. RV Institute of Management, Bangalore, India |
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| Abstract: | Prior research has suggested that most people are seriously overconfident in their answers to general knowledge questions. We attempted to reduce over-confidence in each of two separate experiments. In Experiment 1 half of the subjects answered five practice questions which appeared to be difficult. The remaining subjects answered practice problems which appeared to be easy but were actually just as difficult as the other group's practice questions. Within each of these two groups, half of the subjects received feedback on the accuracy of their answers to the practice questions, while the other half received no feedback. All four groups then answered 30 additional questions and indicated their confidence in these answers. The group which had received five apparently “easy” practice questions and then had been given feedback on the accuracy of their answers was underconfident on the final 30 questions. In Experiment 2 subjects who anticipated a group discussion of their answers to general knowledge questions took longer to answer the questions and expressed less overconfidence in their answers than did a control group. |
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