David Royse is a professor in the College of Social Work at the University of Kentucky. He earned his Ph.D. from Ohio State University in 1980. He has written several books, including two for Cengage Learning: RESEARCH METHODS IN SOCIAL WORK, Sixth Edition, and PROGRAM EVALUATION: AN INTRODUCTION TO AN EVIDENCE-BASED APPROACH, Sixth Edition. Deborah K. Padgett, Ph.D., MPH, is ... Read morea professor at the New York University School of Social Work. She received her doctorate in urban anthropology in 1979 and completed post-doctoral programs in mental health services research at Columbia University School of Public Health (1985–86) and Duke University Department of Psychiatry (1994–95). Dr. Padgett's research interests include breast cancer screening and follow-up care for medically underserved women and qualitative studies of the 'process' of care for psychiatrically disabled homeless adults. Bruce A. Thyer, Ph.D., is Dean and Professor, School of Social Work, Florida State University. He earned his Ph.D. in Social Work and Psychology from the University of Michigan in 1982. Recipient of a National Institute of Mental Health Faculty Scholar Award, Dr. Thyer has published extensively on social work practice, research, and evaluation. Show Less