Dr. Mather is a professor emerita at the University of Arizona in the Department of Disability and Psychoeducational Studies. She holds an MA in Behavior Disorders and a PhD from the University of Arizona in Special Education and Learning Disabilities. She completed a postdoctoral fellowship under the mentorship of Dr. Samuel Kirk at the University of Arizona. Dr. Mather assisted Dr. Richard Woodcock with several aspects of test development for the Woodcock-Johnson Psycho-Educational Battery–Revised (WJ-R®), including coauthoring the Examiner’s Manuals for the WJ-R Tests of Cognitive Ability and Achievement. She has been a coauthor of both the Woodcock-Johnson III (WJ III®) and the Woodcock-Johnson® IV (WJ IV) and has coauthored books on the interpretation and application of the WJ III and WJ IV. She has served as a learning disabilities teacher, a diagnostician, a university professor, and an educational consultant. Dr. Mather conducts research in the areas of reading and writing development.