Lynn Kozlowski was an Assistant Professor of Psychology at Wesleyan University from 1974 to 1979, when he moved to Canada. For 10 years he worked at the Addiction Research Foundation in Toronto, where he was a Senior Scientist and Head of their behavioral research program on tobacco use. He was also Professor of Preventive Medicine & Biostatistics and Professor of Psychology at the University of Toronto. In 1990, he moved to Penn State University where he was Professor and Head of Department of Biobehavioral Health in the College of Health and Human Development. Kozlowski has served on the Editorial Boards of Drug and Alcohol Dependence, Journal of Substance Abuse and Psychology of Addictive Behaviors. He is a Senior Editor of Addiction and an Associate Editor for Tobacco Control. In 2006, he moved to the University at Buffalo, to start the Department of Health Behavior. In 2008 he was appointed to Dean of the School of Public Health and Health Professions and served in that role until June 2014.
Lynn Kozlowski is a Fellow of the American Psychological Association, the Academy of Behavioral Medicine Research and the Society for Nicotine and Tobacco Research; he is also a Member of the American Public Health Association.