Karon Cook received the PhD degree in Educational Psychology/Quantitative Methods from the University of Texas at Austin in 1996. She completed a post-doctoral fellowship in health services research at the Health Center for Health Care Quality and Utilization Studies, Veterans Health Administration Health Services Research, Houston, Texas. From 1997-2005, she was faculty at Baylor College of Medicine. She is currently Research Professor in the Department of Medical Social Sciences, Feinberg Medical School, Northwestern University, Chicago, Illinois. Dr. Cook has made substantial contributions to health outcomes research, concentrating on modern psychometric approaches including computer adaptive testing. She has served as PI on multiple grants and contracts funded by NIH, AHRQ, Department of Defense (DoD), and Veterans Affairs. She was been a PROMIS-funded co-investigator since 2005. Dr. Cook’s work with the Department of Defense (DoD) has included the development of the Pain Assessment Screening Tool and Outcomes Registry (PASTOR, work that was recognized in 2014 with the Congressman John P. Murtha Memorial Award for Excellence in the Advancement of Military Pain Medicine. Dr. Cook’s most recent work has focused on identifying, from clinician and patient perspectives, thresholds for levels of outcomes and developing reports that help improve clinical management of patients.