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Assessment of Mouse Judgment Bias through an Olfactory Digging Task
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Partisan Bias and Its Discontents.

Peter H Ditto1, Cory J Clark2, Brittany S Liu3

  • 11 Department of Psychological Science, University of California, Irvine.

Perspectives on Psychological Science : a Journal of the Association for Psychological Science
|March 7, 2019
PubMed
Summary

This meta-analysis found similar levels of partisan bias in liberals and conservatives. Critiques were addressed, reaffirming findings and urging context-sensitive research on political differences.

Keywords:
biasideologymeta-analysismotivated reasoningpolitics

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Area of Science:

  • Social Psychology
  • Political Science

Background:

  • Partisan bias in political attitudes and decision-making is a significant area of research.
  • Previous meta-analyses have suggested potential asymmetries in bias between liberals and conservatives.
  • Critiques have been raised regarding the methodologies and interpretations of studies on partisan bias.

Purpose of the Study:

  • To address critiques of a meta-analysis that found similar levels of partisan bias in liberals and conservatives.
  • To defend the methodology and findings against claims of biased study selection or alternative explanations like rational Bayesian updating.
  • To discuss the broader implications of bias in social psychology and the need for nuanced research.

Main Methods:

  • The original meta-analysis included studies covering diverse political issues to ensure fair comparison of bias.
  • Studies were selected to minimize vulnerability to Bayesian counterexplanation, aligning with common understandings of bias.
  • The response systematically addresses each critique, providing counterarguments and evidence.

Main Results:

  • The meta-analysis demonstrated comparable levels of partisan bias among both liberal and conservative individuals.
  • The critiques regarding study selection bias and the measurement of bias versus rational updating were refuted.
  • The existence of liberal bias in social psychology does not negate the possibility or impact of other biases.

Conclusions:

  • The findings of similar partisan bias in liberals and conservatives are robust despite methodological critiques.
  • There is a need for vigilance regarding all forms of bias in social psychology to ensure scientific integrity.
  • Future research should avoid broad generalizations and consider the temporal and contextual factors influencing political differences.