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Related Experiment Videos

When does duration matter in judgment and decision making?

D Ariely1, G Loewenstein

  • 1Massachusetts Institute of Technology, 38 Memorial Drive, E56329, Cambridge, Massachusetts 02142, USA. ariely@mit.edu

Journal of Experimental Psychology. General
|January 6, 2001
PubMed
Summary
This summary is machine-generated.

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People often ignore duration in decision-making, contrary to economic models. This study found that reducing reliance on conversational norms and comparison standards increases attention to duration.

Area of Science:

  • Behavioral Economics
  • Decision Science
  • Psychology

Background:

  • Discounted Utility (DU) model assumes individuals do not value sequence features like duration.
  • Kahneman and coauthors identified duration as a key factor people underweight in sequences.
  • Conversational norms and scale-norming influence judgment and decision-making.

Purpose of the Study:

  • To investigate the influence of conversational norms and scale-norming on the underweighting of duration.
  • To examine how manipulating these factors affects attention to duration in decision-making.

Main Methods:

  • Four parallel studies were conducted, orthogonally manipulating conversational norms and scale-norming.
  • Participants' responses were analyzed to assess the impact of these manipulations on duration perception.

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Main Results:

  • Reducing reliance on conversational norms increased attention to duration.
  • Decreasing reliance on standards of comparison also enhanced duration salience.
  • Both factors, when reduced, led participants to pay more attention to the duration of experiences.

Conclusions:

  • Conversational norms and scale-norming play a significant role in why duration is often ignored.
  • Altering response modes to minimize these influences can increase the perceived importance of duration.
  • Findings challenge traditional economic models by highlighting psychological factors in duration neglect.