Dr. Malec is Professor and Research Director in the IUSM Department of PM&R and RHI, Professor Emeritus of Psychology at the Mayo Clinic, and Board Certified in Clinical Neuropsychology and Rehabilitation Psychology. Dr. Malec directed the Mayo TBIMS from 1999 through 2007. Relevant to the proposed work, for the past 20 years he has been a leader and advocate for the use of modern item-response theory (IRT) techniques in developing rehabilitation metrics. He has developed a widely used measure of post-acute brain injury rehabilitation outcomes, the Mayo-Portland Adaptability Inventory, and is currently developing a national database for such outcomes with funding from the National Institute of Neurological Diseases and Stroke in collaboration with Inventive Software Solutions. He has over 130 peer-reviewed publications, and has received professional recognition, including: the American Congress of Rehabilitation Medicine Lowman Award for interdisciplinary rehabilitation, the North American Brain Injury Society Research Award, the Brain Injury Association of Minnesota Career Service Award, the Mitchel Rosenthal Memorial Award and Lectureship from the American Congress of Rehabilitation Medicine, the 2012 Sheldon Berrol, MD, Clinical Service Award from the Brain Injury Association of America, and the Moody Prize for Distinguished Initiatives in Brain Injury Research and Rehabilitation.