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Face-Based Judgments: Accuracy, Validity, and a Potential Underlying Mechanism.

Seungbeom Hong1, Hye Won Suk1, Yoonseok Choi1

  • 1Department of Psychology, Sogang University.

Psychological Science
|August 19, 2021
PubMed
Summary
This summary is machine-generated.

Facial inferences can predict behavior, but confidence in these judgments doesn't correlate with accuracy. The accuracy of face-based judgments may stem from self-fulfilling prophecies rather than direct links between appearance and behavior.

Keywords:
face perceptionopen dataopen materialsself-fulfilling prophecysocial perceptiontrait inferences

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Area of Science:

  • Psychology
  • Social Psychology
  • Behavioral Science

Background:

  • Scholars debate the validity of facial inferences for predicting behavior.
  • Previous research focused on accuracy, not the underlying mechanisms of face-based judgments.
  • Understanding the link between facial appearance and actual behavior is crucial.

Purpose of the Study:

  • To examine the accuracy and validity of face-based judgments.
  • To investigate the association between accuracy and confidence in these judgments.
  • To explore the mechanisms linking facial appearance to behavior.

Main Methods:

  • Utilized data from 1,386 American and Korean adults.
  • Conducted multiple studies (1, 2a, 2b, 3) to test hypotheses.
  • Analyzed the relationship between face-based judgments, behavioral predictions, confidence, and self-fulfilling effects.

Main Results:

  • Face-based judgments demonstrated accuracy in predicting behavior (Study 1).
  • Confidence in judgments was not associated with accuracy (Studies 2a, 2b).
  • Accuracy appears driven by perceivers' beliefs (self-fulfilling effects) rather than direct face-behavior links (Study 3).

Conclusions:

  • While face-based judgments can be accurate, confidence is not a reliable indicator of this accuracy.
  • The validity of facial inferences may be explained by self-fulfilling prophecies.
  • Further research should explore the role of perceiver beliefs in social judgments.