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Confidence judgments interfere with perceptual decision making.

Kit S Double1, Damian P Birney2

  • 1School of Psychology, University of Sydney, Sydney, Australia. kit.double@sydney.edu.au.

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|June 19, 2024
PubMed
Summary
This summary is machine-generated.

Eliciting confidence judgments alongside decisions impairs accuracy, suggesting confidence relies on different evidence. This challenges using confidence ratings as an unobtrusive metacognition measure.

Keywords:
ConfidenceConfidence judgmentsMetacognitionPerceptual discriminationReactivity

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Area of Science:

  • Cognitive Psychology
  • Decision Science
  • Metacognition Research

Background:

  • Assessing decision confidence traditionally involves explicit confidence judgments.
  • Recent studies question if eliciting confidence judgments affects decision accuracy (reactivity effects).
  • Evidence on the direction and impact of reactivity effects remains mixed.

Purpose of the Study:

  • To investigate the impact of contemporaneous confidence judgments on decision accuracy.
  • To amplify potential reactivity effects by eliciting confidence during perceptual decisions.
  • To challenge the assumption of confidence ratings as unobtrusive metacognitive measures.

Main Methods:

  • Three experimental studies were conducted.
  • Confidence judgments were elicited concurrently with perceptual decisions.
  • Decision accuracy was measured under these contemporaneous conditions.

Main Results:

  • Contemporaneous elicitation of confidence judgments significantly impaired decision accuracy.
  • This impairment suggests confidence judgments utilize distinct evidence from the primary decision.
  • Reactivity effects were consistently observed and amplified.

Conclusions:

  • Confidence judgments elicited concurrently with decisions negatively impact accuracy.
  • Confidence assessment may depend on separate evidence streams than the decision itself.
  • The use of confidence ratings as a non-reactive measure of metacognition is questioned.