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Related Experiment Videos

Testing architectures of the decision-confidence relation.

J V Baranski1, W M Petrusic

  • 1Department of Psychology, Carleton University, Ottawa, Ontario K1S 5B6. joe.baranski@dciem.dnd.ca

Canadian Journal of Experimental Psychology = Revue Canadienne De Psychologie Experimentale
|October 19, 2001
PubMed
Summary

Making confidence judgments during decision-making tasks slows response times. This research shows confidence processing occurs both during and after decisions, impacting human judgment theories.

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Probing the locus of confidence judgments: experiments on the time to determine confidence.

Journal of experimental psychology. Human perception and performance·1998

Area of Science:

  • Cognitive Psychology
  • Human Judgment and Decision Making

Background:

  • Confidence judgments are integral to understanding decision-making processes.
  • The temporal dynamics of confidence processing remain an area of active research.

Purpose of the Study:

  • To investigate the impact of requiring confidence judgments on the comparative decision process.
  • To determine if confidence processing occurs in parallel or postdecisionally.

Main Methods:

  • Two experiments involving two-alternative perceptual (line-length) and semantic (city population) comparisons.
  • Participants provided confidence judgments during specific experimental sessions.
  • Analysis of decisional response time and time to determine confidence.

Main Results:

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  • Requiring confidence judgments significantly increased decisional response time.
  • Evidence for postdecisional confidence processing was observed.
  • Findings were consistent across both perceptual and semantic judgment tasks.

Conclusions:

  • Confidence processing occurs both concurrently with and subsequent to the primary decision.
  • These findings have implications for existing theories of confidence in human judgment.