Dr. Elizabeth Kilbey is a leading clinical psychologist and collaborates as child psychologist with British Channel 4's "The Secret Life of 4, 5 and 6 Year Olds," an educational TV research experiment that glimpses into how children behave when grown-ups are not around. She is the author of "Unplugged Parenting," a book that has helped hundreds of parents address key issues during the early years of their children's development, especially related to the time they spend in front of screens. In her book, Kilbey offers tangible, practical advice to parents about how to unplug their children from devices so their online time doesn't become a problem.