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The function of credibility in information processing for risk perception.

Craig W Trumbo1, Katherine A McComas

  • 1Missouri School of Journalism, The University of Missouri, 181E Gannett Hall, Columbia, MO 65211, USA. trumbocw@missouri.edu

Risk Analysis : an Official Publication of the Society for Risk Analysis
|May 7, 2003
PubMed
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Information credibility influences risk perception. High credibility from industry and state lowers perceived risk, while high credibility from citizen groups increases it, impacting information processing.

Area of Science:

  • Risk communication
  • Information processing
  • Psychology

Background:

  • Understanding how credibility influences risk perception is crucial for effective public health communication.
  • Existing models of risk perception and information processing offer frameworks for analysis.
  • The heuristic-systematic model and psychometric risk perception model provide theoretical underpinnings.

Purpose of the Study:

  • To examine the relationship between information source credibility and risk perception.
  • To investigate the mediating role of information processing in this relationship.
  • To integrate the psychometric model of risk perception, the heuristic-systematic model, and credibility assessment.

Main Methods:

  • Data collected from 696 participants regarding state health department investigations of suspected cancer clusters.

Related Experiment Videos

  • Credibility of information sources (state health departments, citizen groups, industries) was assessed.
  • Path modeling was employed to analyze the indirect effects of credibility on risk perception through information processing.

    • Main Results:

    • Higher credibility for industry and state sources predicted lower risk perception.
    • Higher credibility for citizen groups predicted greater risk perception.
    • Information processing (heuristic vs. systematic) mediated the relationship between credibility and risk perception.

    Conclusions:

    • Credibility of information sources significantly impacts risk perception, mediated by information processing strategies.
    • Trust in official sources (state, industry) encourages heuristic processing and lowers perceived risk.
    • Distrust in official sources or trust in citizen groups encourages systematic processing and increases perceived risk.