SALLY L. KEMP, PhD, is a developmental neuropsychologist with extensive experience in multidisciplinary pediatric practice and an adjunct professor in the Department of Health Psychology at the University of Missouri, Columbia. Dr. Kemp’s research has centered on neurodevelopmental disorders, especially autism, dyslexia, and ADHD. She is a coauthor of the NEPSY and NEPSY-II tests. MARIT KORKMAN, PhD, is Professor of Neuropsychology at the University of Helsinki and chairs the National Finnish Postgraduate Specialization Program in Clinical Neuropsychology. Dr. Korkman's research on children with various disorders and risk factors, especially very low birth weight, prenatal alcohol exposure, epilepsy, and learning/developmental disorders, is widely published. She is the senior author of the NEPSY and NEPSY-II tests.