Matthew R. Merrens, PhD, is Professor of Psychiatry at Dartmouth Medical School and the Co-Director of the Dartmouth Evidence-Based Practices Center. He joined the Dartmouth Psychiatric Research Center (PRC) in 2001 after many years at the State University of New York where he authored a number of books in general, social, personality and developmental psychology. At the PRC he has edited books and written articles on evidence-based mental health practices and has directed a consultation, training and dissemination center.