Shared social identity and social norms are often un(der)recognized within mass gatherings health literature, yet they can increase infectious disease transmission by motivating people to engage in risk‐taking behaviours. Across three experiments (Ntotal = 1551), we investigated how shared social identities, perceived norms of resource‐sharing, and perceived riskiness of sharing interact to shape decisions that can lead to disease transmission. In Experiment 1 (N = 528), we examined how shared social identity and perceived descriptive norms affect the likelihood of crowd members sharing resources that may contribute to disease spread. We then replicated this in Experiment 2 (N = 511) using perceived injunctive norms. In Experiment 3 (N = 512), we explored how high shared social identity, perceived norms, and perceived health risks of resource‐sharing impact the likelihood of sharing that may, in turn, increase infectious disease transmission at mass gatherings. We found that high shared social identity interacts with perceived descriptive and injunctive norms, and low health risk perceptions, to increase the likelihood of accepting resources and giving resources at mass gatherings. We discuss the theoretical and practical implications for researchers, practitioners, and policymakers to build effective strategies to mitigate infectious disease transmission at mass gatherings.

中文翻译：

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共同的社会身份和社会规范塑造了大型集会的冒险行为


共享的社会身份和社会规范在大型集会健康文献中往往未得到认可，但它们可以通过激励人们从事冒险行为来增加传染病的传播。在三个实验 （Ntotal = 1551） 中，我们研究了共享的社会身份、感知到的资源共享规范和感知到的共享风险如何相互作用以影响可能导致疾病传播的决策。在实验 1 （N = 528） 中，我们研究了共享的社会身份和感知的描述性规范如何影响人群成员共享可能导致疾病传播的资源的可能性。然后，我们在实验 2 （N = 511） 中使用感知的禁令规范复制了这一点。在实验 3 （N = 512） 中，我们探讨了高度共享的社会身份、感知规范和资源共享的感知健康风险如何影响共享的可能性，这反过来又可能增加大型集会中的传染病传播。我们发现，高共享社会身份与感知到的描述性和禁令性规范以及低健康风险感知相互作用，从而增加在大型集会上接受资源和提供资源的可能性。我们讨论了研究人员、从业者和政策制定者制定有效策略以减轻大型集会中传染病传播的理论和实践意义。