The Impact of Chatbot Type and Normative Messaging on Chatbot Usage Intention Based on the Health Technology Acceptance Model: Randomized Controlled Trial

Yi Liao   ^{1, 2} , MS ;   Anne Madeo   ^{2, 3} , MS, PhD ;   Caitlin G Allen   ⁴ , MPH, PhD ;   Melissa K Frey   ⁵ , MD, MS ;   Whitney Maxwell   ² , MS ;   Chelsey Schlechter   ^{2, 6} , MPH, PhD ;   Ravi N Sharaf   ⁵ , MD, MS ;   Kensaku Kawamoto   ⁷ , MD, PhD ;   Guilherme Del Fiol   ⁷ , MD, PhD ;   Kimberly A Kaphingst   ^{1, 7} , SCD

¹ Department of Communication, University of Utah, Salt Lake City, UT, United States

² Huntsman Cancer Institute, Salt Lake City, UT, United States

³ Center for Health Optimization and Implementation Research (CHOIR), VA Bedford and VA Boston Healthcare Systems, Boston, MA, United States

⁴ School of Medicine, Wake Forest University, Winston-Salem, NC, United States

⁵ Weill Cornell Medicine, New York City, NY, United States

⁶ Department of Population Health Sciences, University of Utah, Salt Lake City, UT, United States

⁷ Department of Biomedical Informatics, University of Utah, Salt Lake City, UT, United States