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Local dominance in health risk perception
1Department of Psychology, University of North Carolina at Greensboro, Greensboro, NC, USA. e_zell@uncg.edu
Psychology & Health
|December 5, 2012
Summary
Local comparisons, involving a few individuals, significantly impact health risk perception over general comparisons. This effect, known as local dominance, influences health judgments and behaviors.
Area of Science:
- Social Psychology
- Health Psychology
- Behavioral Science
Background:
- Self-evaluation is influenced by social comparison, with local comparisons (few people) often dominating general comparisons (many people).
- The impact of this 'local dominance' effect on health risk perception and subsequent health behaviors remains underexplored.
- Accurate health risk perception is crucial for motivating preventative health behaviors.
Purpose of the Study:
- To investigate whether the local dominance effect extends to the domain of health risk perception.
- To determine if comparisons with a small group of peers influence perceived health risks more than comparisons with a large group.
- To examine the implications of these effects on health-related judgments and behaviors.
Main Methods:
- Two studies were conducted using manipulated feedback on health risks (diabetes risk in Study 1, car accident risk in Study 2).
- Participants received comparative risk feedback relative to either numerous peers (general comparison) or a few peers (local comparison).
- Risk perception was assessed after participants received feedback indicating their risk was above average or below average.
Main Results:
- Participants perceived their risk as significantly higher when informed it was above average compared to below average, demonstrating a general comparison effect.
- However, this disparity in risk perception was eliminated when participants also received local comparison information (highest/lowest among a few peers).
- Local comparison information moderated the influence of general comparison feedback on health risk perception.
Conclusions:
- The local dominance effect, where comparisons with a few individuals outweigh those with many, is evident in health risk perception.
- This finding suggests that local comparison information can mitigate or eliminate the bias introduced by general comparison feedback.
- Understanding local comparison effects is vital for accurately assessing and influencing health judgments and promoting preventative health behaviors.
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