Patricia S. O'Sullivan, EdD is Professor in the Department of Medicine and Associate Director for Educational Research in the Office of Medical Education at the University of California, San Francisco. She has over 25 years of experience in medical and health professions education. Her research focus is primarily in clinical education. Her recent studies, initially funded by the Stemmler Fund of the National Board of Medical Examiners, concern the use of portfolios for assessment. Currently, Dr. O'Sullivan serves as the chair of the Research in Medical Education Program Planning Committee and she is vice-president elect of the Division for Professions Education of the American Educational Research Association. Dr. O'Sullivan has been involved with educational research with health professionals in medicine, nursing, pharmacy, and health related professions.