Jacobus Donders, PhD, ABPP (CN, RP), is Chief Psychologist at Mary Free Bed Rehabilitation Hospital in Grand Rapids, Michigan. He is board certified in Clinical Neuropsychology, Pediatric Clinical Neuropsychology, and Rehabilitation Psychology through the American Board of Professional Neuropsychology. His main interests include validity of neuropsychological tests and prediction of outcome after brain injury. In addition to being an active clinical practitioner, Dr. Donders has served on multiple editorial and executive boards, has published more than 100 publications in peer-reviewed journals as well as several edited or coedited books, and is an associate editor of Child Neuropsychology and Archives of Clinical Neuropsychology. He is a Fellow of the American Psychological Association and the National Academy of Neuropsychology.