Abstract Background Germans hesitated to get vaccinated with AstraZeneca in the COVID-19 pandemic after reports of blood clots. Methods In two preregistered online experiments with stratified randomization (Study 1 N = 824, Study 2: N = 1,056), we tested whether providing evidence-based benefit-risk…
Age is a critical risk factor for severe COVID-19. This is mirrored by older people showing preventive health behaviors more frequently. However, collective action across all age groups is necessary to reduce transmission. Therefore, this study assessed whether age differences are moderated by policy…