Jacques P. Barber, PhD, ABPP, is Professor Emeritus and Dean Emeritus of the Gordon F. Derner School of Psychology at Adelphi University. He is also Adjunct Professor of Psychiatry at New York University and Professor Emeritus in the Department of Psychiatry and in the Graduate Psychology Group at the University of Pennsylvania. Dr. Barber is past president of the International Society for Psychotherapy Research and a recipient of its Outstanding Early Career Award and Distinguished Research Career Award. He has published more than 300 articles, book chapters, and books on topics including psychodynamic therapy, psychotherapy research, and the therapeutic alliance.