Causal Modeling of Descriptive Social Norms from Twitter and the Physical World on Expressed Attitudes Change: A Case Study of COVID-19 VaccinationArticle Published on 2022-12-012023-07-10 Journal: Cyberpsychology, behavior and social networking [Category] COVID19(2023년), [키워드] attitude change COVID-19 descriptive social norms social networking platforms vaccination [DOI] 10.1089/cyber.2022.0153