Abstract
Public divisions over contested science often arise due to individuals’ motivation to hold beliefs in line with others with whom they share a common social identity. To reduce the influence of threatened group identities, this research tests two potential interventions at the point of exposure to new information: self-affirmation and multiple identity salience manipulation. Experiments across dispute contexts—a toxic mining spill, a biofuels mandate, and gene editing technology—show limited support for either intervention reducing group alignment. Together, these results contribute to a growing body of work illuminating the limits of social identity interventions.
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