Michelle Stock

Associate Professor of Applied Social Psychology
Room 306
Address: 2125 G St NW
Washington, District Of Columbia


Current Research

Dr. Stock focuses her research on applying social-psychological theories to the study of risky health cognitions and behaviors, including substance use, sexual behaviors, and UV exposure. Her experimental and survey research focuses on the application of dual-processing models, in particular the Prototype-Willingness model (Gibbons, Gerrard, & Lane, 2003), to provide a framework for understanding the cognitive (both heuristic and reasoned) constructs and situational factors that affect health decisions. The research conducted in her lab can be split into three main areas:

1) the relation among risk behavior, social comparison, and perceptions of risk;

2) applying social psychological theory and the Prototype-Willingness model to health interventions;

3) examining the relation between racial discrimination and risky health cognitions and behaviors as well as risk and protective factors that may help explain and that may reduce this relation.


Ph.D. 2007, Iowa State University


Stock, M. L., Gibbons, F.X., Beekman, J. B. Williams, K. D., Richman, L. S., & Gerrard, M. (2017). Racial (versus self) affirmation as a protective mechanism against the effects of racial exclusion on negative affect and substance use vulnerability among Black young adults. Journal of Behavioral Medicine. doi: 10.1007/s10865-017-9882-7

*Beekman, J.B., Stock, M.L., & Howe, G.W. (2017). Stomaching rejection: Self-compassion and self-esteem moderate the impact of daily social rejection on restrictive eating behaviors among college women. Psychology & Health. http://dx.doi.org/10.1080/08870446.2017.1324972

Stock, M. L., Peterson, L. M., *Molloy, B. K., & Lambert, S. F. (2017). Past racial discrimination exacerbates the effects of racial exclusion on negative affect, perceived control, and alcohol-risk cognitions among Black young adults. Journal of Behavioral Medicine, 40, 377-391. doi:10.1007/s10865-016-9793-z

Stock, M.L., Gibbons, F.X., Beekman, J.B., & Gerrard, M. (2015). It only takes once: The absent-exempt heuristic and reactions to comparison-based sexual risk information. Journal of Personality and Social Psychology, 109, 39-52. http://dx.doi.org/10.1037/a0039277

*Walsh, L. A., Shepperd, J., & Stock, M.L. (2015). Predicting avoidance of skin damage risk information among college students. Annals of Behavioral Medicine, 49, 685-695. doi: 10.1007/s12160-015-9703-6

Stock, M.L., *Litt, D.M., *Arlt, V., *Peterson, L.M., & *Sommerville, J. (2013). The Prototype/Willingness model, academic versus health-risk information, and risk cognitions associated with nonmedical prescription stimulant use among college students. British Journal of Health Psychology, 18, 490-507. doi: 10.1111/j.2044-8287.2012.02087.x

Stock, M.L., Gibbons, F.X., Peterson, L.M., & Gerrard, M. (2013). The effects of racial discrimination on the HIV-risk cognitions and behaviors of Black adolescents and young adults. Health Psychology, 32, 543-550. doi: 10.1037/a0028815

*current or former student