Kathryn Paige Harden, Ph.D., is a Professor of Psychology at the University of Texas at Austin, where she directs the Developmental Behavior Genetics lab and serves as Director of Clinical Training. Paige is a graduate of Furman University and the University of Virginia. She has published over 150 scientific papers on the nature and nurture of human behavior and has written two books--The Genetic Lottery (Princeton, 2021) and Original Sin (Random House, 2026).