Sadie Larsen is a clinical psychologist at the National Center for PTSD where she works to disseminate information on the best available treatments forPTSD. She also conducts research at the Milwaukee VA and is an AssociateProfessor at the Medical College of Wisconsin. Dr. Larsen specializes inProlonged Exposure (PE) and Cognitive Processing Therapy (CPT) and is interested in helping clinicians provide evidence-based treatment while navigating the nuances of particular cases and the administrative and other challenges that come with systems change. Dr. Larsen has served as the LocalEvidence Based Psychotherapy Coordinator and founder/lead of the Evidence BasedPsychotherapy clinic at the Milwaukee VA. Her primary research interests involve better understanding variation in response to evidence-based treatments for PTSD, cognitive and emotional processes that maintain or alleviate PTSD symptoms, and the unique experiences of Veterans and of men and women who experience interpersonal and sexual trauma. Dr. Larsen received her PhD from the University of Illinois at Urbana-Champaign. She completed her predoctoral internship at University of Wisconsin and her postdoctoral fellowship in PTSD treatment at VA Boston.