Dr. Duehn joined the faculty in 1970. He is currently engaged in clinical research on sexually abusive parents and juvenile sex offenders. As a national lecturer and trainer, Dr. Duehn is also consultant to many institutions including The Casey Family Programs, National CASA, Big Brothers/Big Sisters Association, National Network of Children's Advocacy Centers, and has conducted training for law enforcement personnel, schools, CASA staff/volunteers, and social service/mental health agencies throughout the United States. He earned his Master's degree in Social Work from Loyola University, Chicago, and holds a Ph.D. degree in Psychology and Social Work from Washington University, St. Louis. While in St. Louis, Dr. Duehn was a research associate at the Masters and Johnson Institute and has done post-doctoral work and taught at The University of Hawaii. He has written extensively in the area of clinical practice and has presented research findings at the International Conference on Child Abuse and Neglect, Paris, France; the World Congress of Medical Sexology in Mexico City and Jerusalem; and the United Nations Conference Facilities in Vienna. He has conducted training seminars for Air Force, Navy, Coast Guard and Army medical personnel in England, Germany, Guam, Iceland, Japan, Italy, Korea, Panama, and the Philippines. Dr. Duehn is co-author of Beyond Sexual Abuse: The Healing Power of Adoptive Families, which is an outgrowth of an ongoing educational program of the Three Rivers Adoption Council, Pittsburgh, Pennsylvania. This project is designed to develop educational materials to assist adoptive families in parenting the sexually abused child. Most recently, Dr. Duehn developed a child abuse prevention program for the Department of Defense Dependents Schools which has been implemented world wide. Dr. Duehn is a cofounder of Praesidium, Inc., an abuse risk management firm for organizations. Dr. Duehn is a recognized authority and educator in the intervention and treatment of sexually abusive families.