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Truth feels easy: Knowing information is true enhances experienced processing fluency.

Lea S Nahon1, Sarah Teige-Mocigemba2, Rolf Reber3

  • 1Department of Psychology, University of Marburg, Gutenbergstrasse 18, 35032 Marburg, Germany; Faculty of Psychology, University of Basel, Missionsstrasse 64A, 4055 Basel, Switzerland.

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Summary
This summary is machine-generated.

Believing information is easier when it is processed fluently. This study confirms that people find true statements easier to process than false ones, supporting the fluency-truth effect.

Keywords:
Processing fluencyTruth effect

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Area of Science:

  • Cognitive Psychology
  • Social Psychology

Background:

  • The fluency-truth effect suggests people believe information more readily if it is easy to process.
  • This effect is often explained by assuming truth and processing fluency are positively correlated.
  • It is presumed that true information is processed more fluently than false information.

Purpose of the Study:

  • To test the precondition of the ecological learning explanation for the fluency-truth effect.
  • To investigate if information known to be true is experienced as easier to process than information known to be false.
  • To examine the relationship between believed truth and processing fluency.

Main Methods:

  • Five experiments with a total of 712 participants were conducted.
  • Participants judged the processing fluency (e.g., legibility, ease of listening) of true versus false statements and calculations.
  • Experiments controlled for factors like statement familiarity and truth status uncertainty.

Main Results:

  • True statements and calculations were consistently rated as easier to process than false ones.
  • Processing fluency was linked to believed truth, not objective truth.
  • The effect on processing fluency was independent of statement familiarity.

Conclusions:

  • The findings support the precondition that true information is processed more fluently than false information.
  • Processing fluency is associated with the believed truth or falsehood of information.
  • The study validates processing fluency as a cue in truth judgments and discusses its role in the fluency-truth effect.