What reduces prejudice in the real world? A meta-analysis of prejudice reduction field experiments
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Faulkner, Nicholas
Wickes, Rebecca
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Abstract
Despite advances to promote acceptance and equity in many countries, prejudice remains a significant social problem. Promoting intergroup harmony requires knowledge about what works to reduce prejudice in community settings. This meta-analysis of field experiments reveals the most effective intervention types and conditions for reducing negative attitudes towards minority groups in real-world settings. Across 69 intervention arms and 24,378 participants, results reveal that prejudice reduction interventions are effective at improving attitudes towards minority groups in real-world settings (d = 0.51, 95% CI [0.33; 0.68]). The prediction interval was −0.90 to 1.92. In this case, the prediction interval was particularly wide because of the high degree of heterogeneity detected in effect size. Subgroup analyses indicate that less commonly explored approaches, such as perceived variability, may have larger effect sizes than contact-based interventions. Still, more research is needed to confirm the effects of these less-researched approaches. Additionally, results show that interventions are more effective for school and college cohorts than for adults, and that the effects of prejudice reduction interventions endure over time.
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British Journal of Social Psychology
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61
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3
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© 2022 British Psychological Society. This is the peer reviewed version of the following article: What reduces prejudice in the real world? A meta-analysis of prejudice reduction field experiments, British Journal of Social Psychology, 2021, 61 (3), pp. 689-710, which has been published in final form at https://doi.org/10.1111/bjso.12509. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.
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Psychology
Social psychology
Sociology
Social Sciences
Psychology, Social
effectiveness
field experiments
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Hsieh, W; Faulkner, N; Wickes, R, What reduces prejudice in the real world? A meta-analysis of prejudice reduction field experiments, British Journal of Social Psychology, 2021, 61 (3), pp. 689-710