The Prototypical Majority Effect Under Social Influence

Asher Koriat, Shiri Adiv-Mashinsky, Monika Undorf, Norbert Schwarz

Research output: Contribution to journalArticlepeer-review


Majority views are reported with greater confidence and fluency than minority views, with the difference increasing with majority size. This Prototypical Majority Effect (PME) was attributed generally to conformity pressure, but Koriat et al. showed that it can arise from the processes underlying decision and confidence independent of social influence. Here we examined the PME under conditions that differ in social influence. In Experiment 1, a robust PME emerged in the absence of information about the majority views, but the provision sof that information increased the choice of the majority view and magnified the PME. In Experiment 2, a PME emerged in a minority-biased condition that misled participants to believe that the majority view was the minority view, but the PME was stronger in a majority-biased condition. The results were discussed in terms of a dual-process view: The PME observed under social influence may contain externally driven and internally driven components.

Original languageEnglish
Pages (from-to)670-683
Number of pages14
JournalPersonality and Social Psychology Bulletin
Issue number5
StatePublished - 1 May 2018

Bibliographical note

Publisher Copyright:
© 2018, © 2018 by the Society for Personality and Social Psychology, Inc.


  • majority effect
  • response latency
  • social influence
  • subjective confidence

ASJC Scopus subject areas

  • Social Psychology


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