Dr. Patricia Cohen is Professor of Clinical Epidemiology in Psychiatry at Columbia University College of Physicians and Surgeons and the New York State Psychiatric Institute, where she has been since her Ph.D. in Social Psychology from New York University. She is best known for her texts on multiple regression analyses written with her husband Jacob Cohen, and for the over 200 published articles on the onset and course of mental illness based on her 30 year study of a general population cohort of children, the Children in the Community study.