The increasing focus on children's welfare has given rise to tremendous growth in the field of child psychology, and the past decade has witnessed significant advances in research in this area.

C. EUGENE WALKER, PhD, is a clinical psychologist and consultant. He is Professor Emeritus at the University of Oklahoma Medical School and the author or editor of over twenty books. Michael C. Roberts is the editor of Handbook of Clinical Child Psychology, 3rd Edition, published by Wiley.