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Effects of amount of information on judgment accuracy and confidence

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  • Tsai, Claire I.
  • Klayman, Joshua
  • Hastie, Reid

Abstract

When a person evaluates his or her confidence in a judgment, what is the effect of receiving more judgment-relevant information? We report three studies that show when judges receive more information, their confidence increases more than their accuracy, producing substantial confidence-accuracy discrepancies. Our results suggest that judges do not adjust for the cognitive limitations that reduce their ability to use additional information effectively. We place these findings in a more general framework of understanding the cues to confidence that judges use and how those cues relate to accuracy and calibration.

Suggested Citation

  • Tsai, Claire I. & Klayman, Joshua & Hastie, Reid, 2008. "Effects of amount of information on judgment accuracy and confidence," Organizational Behavior and Human Decision Processes, Elsevier, vol. 107(2), pages 97-105, November.
    • Handle: RePEc:eee:jobhdp:v:107:y:2008:i:2:p:97-105
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