Douglas H. Sprenkle, PhD, is professor and director of the doctoral program in marriage and family therapy at Purdue University. He is a former editor of the "Journal of Marital and Family Therapy. Dr. Sprenkle has received three major career honors from the American Association for Marriage and Family Therapy (AAMFT): the Cumulative Career Contribution in Family Therapy Research Award, the Training Award, and the Significant Contribution to Family Therapy Award. He has also received the Osborne Award for excellence in teaching from the National Council on Family Relations. Among his seven boo...