Terrie Edith Moffitt is an American clinical psychologist who is best known for her pioneering research on the development of antisocial behavior and for her collaboration with colleague and partner Avshalom Caspi in research on gene-environment interactions in mental disorders. Moffitt is the Nannerl O. Keohane University Professor of Psychology & Neuroscience at Duke University (USA) and Professor of Social behavior and Development in the Medical Research Council's Social, Genetic and Developmental Psychiatry Center at the Institute of Psychiatry Psychology an Neuroscience King's College London (UK). She is Associate Director of the Dunedin Longitudinal Study, which follows 1037 people born in 1972-73 in Dunedin, New Zealand. She also launched the Environmental-Risk Longitudinal Twin Study, which follows 1100 British families with twins born in 1994-1995.