John B. Jemmott III, Ph.D.


Health communication and behavior, HIV prevention, behavioral interventions, sexual risk behavior, cultural influences on risk-reduction, violent behavior among adolescents, theories of health behavior, and design and methodology.

Dr. John B. Jemmott III received his Ph.D. in Psychology from the Department of Psychology and Social Relations at Harvard University. Dr. Jemmott holds joint faculty appointments at the University of Pennsylvania as the Kenneth B. Clark Professor of Communication in the Annenberg School for Communication and as Professor of Communication in Psychiatry in the Perelman School of Medicine. He is also the director of the Center for Health Behavior and Communication Research at the Annenberg School for Communication.

Dr. Jemmott is a Fellow of the American Psychological Association and the Society for Behavioral Medicine. He has published more than 100 articles and book chapters and since 1988 has received numerous grants from the National Institutes of Health to conduct research designed to develop and test theory-based, contextually appropriate HIV/STD risk reduction interventions for a variety of populations in the United States and sub-Saharan Africa.


His current projects focus on African American HIV serodiscordant couples, African American men who have sex with men, African American heterosexual men, Xhosa-speaking heterosexual men and adolescents in South Africa, and adolescents in school, church, and clinical settings in Botswana. Dr. Jemmott is also exploring the role that ICTs such as mobile phones, iPads, etc., might be able to play in influencing health behaviors amongst the abovementioned populations.

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