Gina Merchant, PhD

​Postdoctoral Fellow

Research Interest

  • Social Networks
  • Online health communities
  • Natural language processing
  • User engagement in social and mobile health interventions
  • Delivering theory- and evidence- based behavior change techniques in social and mobile health interventions

Selected Publications

  • Merchant, G, Weibel, N., Pina, L., Griswold, W. G., Fowler, J. H., Ayala, G. X., Gallo, L. C., Hollan, J., Patrick, K. Face-to-Face and Online Networks: College Students' Experiences in a Weight-Loss Trial. Revise & resubmit/In press: Journal of Health Communication.  
  • Moller, A. C., Merchant, G., Conroy, D., West, R., Hekler, E., Kuglar, K., Michie, S. Applying and advancing behavior change theories and techniques in the context of digital health interventions. Revise & resubmit/In press: Journal of Behavioral Medicine – Special Issue with Society of Behavioral Medicine Special Interest Group Chairs.
  • Godino, J., Merchant, G., Norman, G. J., Donohue, M. C.,, Marshall, S. J., Fowler, J. H., Calfas, K. J., Rock, C. L., Griswold, W. G., Gupta, A. G., Raab, F., Fogg, B. J., Robinson, T. N., & Patrick, K. Results of a Two-year Randomized Controlled Social and Mobile Weight Loss Trial for Overweight and Obese Young Adults (Project SMART). Accepted for publication June 2016: Lancet Diabetes and Endocrinology.
  • Merchant, G., Buelna, C., Castaneda, S. F., Arredondo, E. M, Marshalll, S. J., Strizich, G., Sotres-Alvarez, D., Chambers, E. C., McMurray, R. G., Evenson, K. R., Stoutenberg, M., Hankinson, A. L., Talavera, G. A. Accelerometer-measured sedentary time among Hispanic adults: Results from the Hispanic Community Health Study/Study of Latinos (HCHS/SOL). Preventive Medicine Reports. doi: 10.1016/j.pmedr.2015.09.019
  • Merchant, G., Weibel, N., Patrick, K., Fowler, J., Norman, G., Gupta, A., Servetas, C., Griswold, W., Calfas, K., Raste, K., Pina, L., Donohue, M., Griswold, W., Marshall, S. (2014). Click 'Like' to change your behavior: A mixed methods study of college students' exposure to and engagement with Facebook content designed for weight-loss. Journal of Medical Internet Research 16 (6), e158. doi: 10.2196/jmir.3267


  • PhD Public Health, Health Behavior
  • MA Experimental Psychology
  • BA Psychology