Editor
George Silberschatz, Ph.D. is a Clinical Professor in Psychiatry at the University of California San Francisco School of Medicine and a member of the San Francisco Psychotherapy Research Group. Internationally recognized for his psychotherapy research, Dr. Silberschatz has given over 150 presentations at professional meetings throughout the United States, Canada, and Europe and has published some 50 papers in various professional journals and books. He was the principal investigator of an NIMH-funded psychotherapy research project at Mount Zion Hospital and co-director of the psychotherapy research program. He currently divides his time between a private practice in San Francisco, teaching and supervising psychotherapy, and writing clinical and research papers.
Contributors
Polly Bloomberg-Fretter, Ed.D., is a Clinical Psychologist in private practice in Berkeley, California. As a 25-year veteran of the San Francisco Psychotherapy Research Group, she is a psychotherapy researcher as well as a clinician and participates in a variety of clinical and research studies of psychotherapy.
John Bugas, Ph.D. has been a member of the San Francisco Psychotherapy Research Group for over 18 years. He currently has a private practice in Sacramento, California.

Marshall Bush, Ph.D. is Clinical Director of the San Francisco Psychotherapy Research Group and a Teaching and Training Analyst at the San Francisco Psychoanalytic Institute. He has a private practice in San Francisco.

John Curtis, Ph.D. is a Clinical Professor in Psychiatry at the University of California San Francisco School of Medicine, a member of the San Francisco Psychotherapy Research Group, and has a private practice in San Francisco.

Kathryn Pryor, Ph.D. is a psychotherapist in private practice in Menlo Park, California. She has been an active member of the San Francisco Psychotherapy Research Group for over ten years.

Harold Sampson, Ph.D. is a member of the San Francisco Psychoanalytic Institute, President of the San Francisco Psychotherapy Research Group, Emeritus Clinical Professor in Psychiatry at the University of California San Francisco School of Medicine, and has a private practice in San Francisco. He is co-author of The Psychoanalytic Process and has published numerous articles on psychopathology and psychotherapy.

Robert Shilkret, Ph.D. is the Norma Cutts Dafoe Professor of Psychology at Mount Holyoke College and Visiting Professor at the Smith College School for Social Work. His research studies the influence of family history variables on college adjustment and many of his studies examine the role of guilt, considered from a control-mastery perspective.

Sara Silberschatz, B.A. recently graduated from New York University with a degree in psychology.

Joseph Weiss, M.D. is Chairman of the San Francisco Psychotherapy Research Group and Training and Supervising Analyst at the San Francisco Psychoanalytic Institute. He has published two books and numerous articles on his theory of how psychopathology develops and how psychotherapy works.