期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2021
卷号：118
期号：13
页码：1
DOI：10.1073/pnas.2102717118
出版社：The National Academy of Sciences of the United States of America
摘要：In his comment (1), Ori Weisel conducted a preregistered experiment that closely followed the methodology and analysis in our paper (2). He examined whether vaccination against COVID-19 can be understood as a social contract even given strong animosity between existing natural groups (i.e., the opposing political preferences that separate US citizens into Democrats vs. Republicans). The experiment conceptually replicated our findings and thus addressed a limitation noted in the original paper: external validity. Specifically, the study revealed that participants’ natural group membership did not affect their conditional generosity toward vaccinated vs. unvaccinated others; this replicated previous.
