John K. Hewitt, Ph.D.
University of Colorado Boulder
Dr. John K. Hewitt is Director of the Institute for Behavioral Genetics and Professor of Psychology and Neuroscience at the University of Colorado Boulder. He received his Ph.D. in Psychology from the University of London in 1978. His research involves twins and families to study genetic and environmental influences on the development of behavior, with a special interest in behavior problems in childhood and adolescence, cognitive abilities, and vulnerability to drug use and abuse. Originally from England, he moved to the United States in 1985 and has lived and worked in New Jersey, Virginia, and Colorado. Despite his professional accomplishments, his most important experience has been with his wife Christina, seeing their four sons navigate the choppy waters of contemporary adolescence into successful adulthood. This experience has provided a personal perspective on the importance of the ABCD study.