Avidan Milevsky, PhD, is Associate Professor of Developmental Psychology and Director of the Center for Parenting Research, Kutztown University of Pennsylvania, USA. He has 20 years of experience working with adolescents, with a focus on systems approaches to interventions, and is currently practicing psychotherapy with adolescents at Wellspring Counseling, Towson, MD. He was the founding Chair of the Psychology Department at Touro College South, USA and is a visiting professor at The Hebrew University in Jerusalem. He has presented at over 100 conferences about his clinical research with adolescents and published more than 20 papers in peer-reviewed journals, including a contribution to the Encyclopedia of Adolescence. Dr. Milevsky has authored several books, most recently Sibling Relationships in Childhood and Adolescence: Predictors and Outcomes (2011). He is a licensed clinical professional counselor in the state of Maryland. Dr. Milevsky has been a guest expert on TV, radio, and the media about his work including stories in The Washington Post, The Wall Street Journal, The Associated Press, Real Simple, and Allure Magazine. Additionally, he is a columnist for Psychology Today and The Huffington Post on family issues.