Effectiveness of an mHealth App That Uses Financial Incentives and Gamification to Promote Health Behavior Change in Adolescents and Caregivers: Protocol for a Clinic-Based Randomized Controlled Trial

Amy Braddock   ^{1 *} , MSPH, MD ;   Parijat Ghosh   ^{1 *} , PhD ;   Emma Montgomery   ^{1 *} , BA ;   Crystal Lim   ^{2 *} , PhD, ABPP ;   Jaya Ghosh   ^{3, 4 *} , PhD ;   Nicole Henry   ^{5 *} , BS ;   Mihail Popescu   ^{6 *} , PhD ;   Kimberly Kimchi   ^{2 *} , PhD ;   Congyu Guo   ^{7 *} , MS ;   K Taylor Bosworth   ^{5 *} , BSc ;   Richelle J Koopman   ^{1 *} , MD, MS

¹ Family and Community Medicine, University of Missouri, Columbia, Columbia, MO, United States

² Department of Health Psychology, University of Missouri, Columbia, Columbia, MO, United States

³ School of Biomedical Engineering, Science & Health Systems, Drexel University, Philadelphia, PA, United States

⁴ Department of Chemical and Biomedical Engineering, University of Missouri, Columbia, Columbia, MO, United States

⁵ School of Medicine, University of Missouri, Columbia, Columbia, MO, United States

⁶ Biomedical Informatics, Biostatistics and Medical Epidemiology, University of Missouri, Columbia, Columbia, MO, United States

⁷ Department of Electrical Engineering and Computer Science, University of Missouri, Columbia, Columbia, MO, United States

*all authors contributed equally