Dr. Richard W. Woodcock
Dr. Woodcock has an extensive background in education and psychology. He has held a variety of positions, including elementary school teacher, school psychologist, director of special education, university professor, and editor of a test publishing company. He earned his doctorate from the University of Oregon with a dual major in statistics and psycho-education, and he completed a post-doctoral fellowship in neuropsychology at Tufts University School of Medicine. He has published more than 135 professional books and articles. Since 1957 Dr. Woodcock has held positions and appointments at Western Oregon University, the University of Northern Colorado, George Peabody College for Teachers, the University of Arizona, the University of Southern California, the University of Virginia, and Vanderbilt University. He is currently serving as a research professor in the Department of Psychology and Philosophy at Texas Woman’s University. Dr. Woodcock is a Fellow of the American Psychological Association and the American Academy of School Psychology and a Diplomate of the American Board of Professional Psychology. In 2013 the Texas Statewide Evaluation Project Conference honored Dr. Woodcock with its first Lifetime Achievement Award.

Mary L. Ruef
Ms. Ruef’s career in test development started in 1984 when she began working with Dr. Richard Woodcock at Measurement Learning Consultants. She worked with Dr. Woodcock for 30 years, during which time she performed testing, managed various portions of norming projects, served as an associate director of the company, and coauthored both the Woodcock-Muñoz Language Survey–Revised and the Bilingual Verbal Ability Tests. She also worked on the following other batteries: Woodcock-Johnson Psycho-Educational Battery–Revised (WJ-R®), Batería Woodcock-Muñoz–Revisada, Woodcock-Johnson®III (WJ III®), Batería III Woodcock-Muñoz®, and Woodcock-Johnson IV (WJ IV™). In 1998 Ms. Ruef became the editor for development and publication of the Woodcock-Johnson International Edition in Latvia, Czech Republic, Hungary, and Slovakia. She received a BA from Western Oregon University and taught in the Salem, Oregon, school district.

Dr. Fredrick Schrank
Dr. Schrank is a licensed psychologist (Washington) and a board-certified specialist in school psychology by the American Board of Professional Psychology (ABPP). He worked in the Wisconsin public schools while earning an EdS in Educational Psychology from the University of Tennessee–Knoxville. He subsequently earned a PhD from the University of Wisconsin–Madison. Dr. Schrank taught at Truman State University (Missouri) and the University of Puget Sound (Washington) before devoting his career almost exclusively to the development and publication of the Woodcock-Johnson family of tests. He has been an oral examiner for the American Board of School Psychology (ABSP) and president of the American Academy of School Psychology (AASP). In 2018 Dr. Schrank was named a J. William Fulbright Specialist by the U.S. Department of State, Bureau of Educational and Cultural Affairs. He is hosted by the Department of Educational and Counselling Psychology of McGill University in Montreal, Quebec. Dr. Schrank is the senior author of theWoodcock-Johnson IV (WJ IV®) Tests of Cognitive Abilities, Woodcock-Johnson IV Tests of Oral Language, Woodcock-Johnson IV Tests of Achievement, Woodcock-Johnson IV Tests of Early Cognitive and Academic Development, WJ IV Interpretation and Instructional Interventions Program, and Essentials of WJ IV Cognitive Abilities Assessment.