Dawn P. Flanagan, PhD, is Professor of Psychology at St. John’s University in New York. She writes and conducts research on such topics as the structure of intelligence, psychoeducational assessment, learning disabilities evaluation and diagnosis, and professional issues in school psychology. Dr. Flanagan’s articles and chapters on these topics appear in school and clinical psychology journals and books. She is senior author of The Wechsler Intelligence Scales and Gf-Gc Theory: A Contemporary Approach to Interpretation , Essentials of Cross-Battery Assessment , The Achievement Test Desk Reference (ATDR): Comprehensive Assessment of Learning Disabilities , Diagnosing Learning… Disability in Adulthood , and Essentials of WISC-IV Assessment ; coauthor of The Intelligence Test Desk Reference (ITDR): Gf-Gc Cross-Battery Assessment and Essentials of WJ III Cognitive Assessment ; and coeditor of Clinical Use and Interpretation of the WJ III. Dr. Flanagan is a Fellow of the American Psychological Association and Diplomate of the American Board of Psychological Specialties, as well as a past recipient of the APA’s Lightner Whitmer Award. Patti L. Harrison, PhD, is Professor in the School Psychology Program and Associate Dean of the Graduate School at the University of Alabama. She has conducted research on intelligence, adaptive behavior, and preschool assessment. Dr. Harrison’s articles and chapters on assessment topics appear in school and clinical psychology and special education journals and texts, and she has presented over 100 refereed and invited presentations on these topics at conferences of professional organizations in psychology and education. She was Editor of School Psychology Review and has been an editorial board member for several school psychology and related journals, including School Psychology Quarterly , the Journal of School Psychology , the Journal of Psychoeducational Assessment , the American Journal on Mental Retardation , and Diagnostique .