David C. Geary is a cognitive scientist and evolutionary psychologist with interests in mathematical cognition and learning as well as the biological bases of sex differences. After receiving his Ph.D. in 1986 from the University of California at Riverside, he held faculty positions at the University of Texas at El Paso and the University of Missouri, first at the Rolla campus and then in Columbia. Dr. Geary is currently a Curators' Distinguished Professor and a Thomas Jefferson Fellow in the Department of Psychological Sciences and Interdisciplinary Neuroscience Program.
Dr. Geary has given invited addresses in a variety of departments (anthropology, biology, behavior genetics, computer science, education, government, mathematics, neuroscience, physics, and psychology) and Universities throughout the United States, as well as in Canada, Europe and East Asia. He is the lead investigator on the MU Math Study, which is focused on mathematical development from the preschool years through high school and supported by the National Institutes of Health and the National Science Foundation.