Alan E. Kazdin is John M. Musser Professor of Psychology at Yale University and Director of Yale's Parenting Center. He was the 2008 President of the American Psychological Association and is the author of many professional-audience books on child psychology and behavior published in dozens of languages. A recent profile in the Yale Alumni Magazine says, "When your kids whines, hits, kicks, and bites--relax. Alan Kazdin can help you find your inner parent."