This research examined the underlying beliefs and psychological determinants of COVID-19 vaccination intention in order to inform effective health promotion efforts. We utilized the reasoned action framework in a mixed-methods, two-study approach. Study 1, an open-ended belief elicitation survey (N = 197), explored the underlying beliefs associated with intention to get vaccinated against COVID-19 once a vaccine becomes available. In a quantitative survey with a representative sample of U.S. adults, study 2 (N = 1656) tested the psychological determinants of intention to get vaccinated. Results revealed (1) the most common attitudinal, normative, and control beliefs about COVID-19 vaccination; (2) instrumental attitude as the strongest determinant of COVID-19 vaccination intention; and (3) ‘achieving peace of mind’ as an effective target for health promotion efforts. Further implications and directions are discussed.

这项研究检查了COVID-19疫苗接种意向的基本信念和心理决定因素，以便为有效的健康促进工作提供信息。我们在混合方法，两个研究方法中利用了合理的行动框架。研究1（一项开放性信念激发调查（N = 197））探讨了与有意在获得疫苗后接种COVID-19疫苗相关的基本信念。在对具有代表性的美国成年人样本进行的定量调查中，研究2（N= 1656）测试了接种疫苗意愿的心理决定因素。结果显示（1）关于COVID-19疫苗接种的最常见的态度，规范和控制信念；（2）工具态度是COVID-19疫苗接种意向的最强决定因素；（3）“使人安心”是促进健康的有效目标。讨论了进一步的含义和方向。