Kristy Hagar, PhD, is a pediatric neuropsychologist at Children's Medical Center of Dallas and an assistant professor of psychiatry at the University of Texas Southwestern Medical Center in Dallas. She lives in Dallas, Texas. Sam Goldstein, PhD, is a coauthor of Angry Children, Worried Parents. He is a member of the faculty at the University of Utah and works as a clinical neuropsychologist at the Neurology, Learning and Behavior Center in Salt Lake City, Utah. He lives in Salt Lake City, Utah. Robert Brooks, PhD, is a coauthor of Angry Children, Worried Parents. He is on the faculty of Harvard Medical School and has a part-time medical practice. He lives in Needham, Massachusetts. They are the coauthors of Seven Steps to Help Your Child Worry Less.