Testing Theory-Enhanced Messaging to Promote COVID-19 Vaccination Among Adults: Randomized Controlled Trial

Rachael Piltch-Loeb   ^{1, 2} , MPH, PhD ;   Yanhan Shen   ¹ , PhD ;   Sasha Fleary   ^{1, 3} , PhD ;   McKaylee Robertson   ¹ , PhD ;   Josefina Nuñez Sahr   ¹ , MPH ;   Kate Penrose   ¹ , MS ;   Jenna Sanborn   ¹ , MS ;   Surabhi Yadav   ¹ , MPH ;   Avantika Srivastava   ^{1, 4} , MS ;   Denis Nash   ^{1, 4} , PhD ;   Angela Parcesepe   ^{1, 5} , PhD

¹ Institute for Implementation Science in Population Health, City University of New York, New York, NY, United States

² Department of Environmental, Occupational, Geospatial Health Sciences, City University of New York, New York City, NY, United States

³ Department of Community Health and Social Sciences, Graduate School of Public Health and Health Policy, City University of New York, New York City, United States

⁴ Department of Epidemiology and Biostatistics, Graduate School of Public Health and Health Policy, City University of New York, New York, NY, United States

⁵ Maternal and Child Health, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, United States