Marylene Cloitre, PhD, is Associate Director of Research in the National Center for PTSD Dissemination and Training Division, Palo Alto VA Health Care System; Clinical Professor (Affiliate), Department of Psychiatry and Behavioral Sciences, Stanford University; and Research Professor, Department of Psychiatry, NYU Langone Medical Center. Dr. Cloitre's primary clinical and research interests are the developmental consequences and treatment of childhood abuse in adults and adolescents. She is the recipient of the Award for Outstanding Contributions to Practice in Trauma Psychologyfrom Division 56 of the American Psychological Association, is past president of the International Society for Traumatic Stress Studies, and was a member of the World Health Organization's ICD-11 working group on trauma spectrum disorders.

Lisa R. Cohen, PhD, has maintained a private practice in clinical psychology in New York City since 2001. Dr. Cohen specializes in the treatment of trauma and stress-related disorders, as well as co-occurring anxiety, mood, eating, and substance use disorders. Previously, she was a Research Scientist at the New York State Psychiatric Institute at Columbia University Medical Center, where she focused on developing, evaluating, and disseminating evidence-based psychotherapies for PTSD and substance use disorders.

Kile M. Ortigo, PhD, is Program Director in the National Center for PTSD Dissemination and Training Division, Palo Alto VA Health Care System. He leads a national initiative to evaluate and implement webSTAIR, an online program based on STAIR. Dr. Ortigo's research and writing have largely focused on personality, trauma, adult attachment, and lifespan developmental models of self. He has a private practice in Palo Alto, California. He serves as the lead editor for Psychedelic Support, an online resource and directory of clinicians.

Christie Jackson, PhD, is Director of Clinical Training for webSTAIR, an online program based on STAIR. Since 2005, Dr. Jackson has maintained a private practice in clinical psychology in New York City. She formerly served as Director of the PTSD Clinics at the Manhattan and Honolulu VA Medical Centers. She has worked with Marylene Cloitre since 2007 on numerous projects to evaluate and disseminate STAIR within the VA and in the community. She currently serves as Lead Trainer for the STAIR Institute.

Karestan C. Koenen, PhD, is Professor of Psychiatric Epidemiology at the Harvard T. H. Chan School of Public Health. She uses a developmental approach to understanding the epidemiology of trauma exposure and stress-related mental disorders such as PTSD and depression. Dr. Koenen is a recipient of the Award for Outstanding Contributions to the Science of Trauma Psychology from Division 56 of the American Psychological Association and the Robert S. Laufer, PhD, Memorial Award for Outstanding Scientific Achievement from the International Society for Traumatic Stress Studies. Dr. Koenen also advocates for survivors of violence and trauma.