Dr. Samuel O. Ortiz is a Professor of Psychology at St. John’s University, Queens, New York. He holds a Ph.D. in clinical psychology from the University of Southern California and a credential in school psychology with postdoctoral training in Bilingual School Psychology from San Diego State University. He has served as Visiting Professor and Research Fellow at Nagoya University, Japan, as Vice President for Professional Affairs of Division 16 (School Psychology) of the American Psychological Association, as a three-term member and in his final year as Chair of APA’s, Committee on Psychological Tests and Assessment. In addition, he has served as member of the Coalition for Psychology in Schools and Education and as representative on the New York State Committee of Practitioners on English Language Learners and Limited English Proficient Students. Recently he completed service on the APA Presidential Task Force on Educational Disparities. He is the primary programmer of the Cross-Battery Assessment Software System (X-BASS). Dr. Ortiz serves or has served on various editorial boards including Journal of School Psychology, School Psychology Quarterly, Journal of Applied School Psychology, Psychology in the Schools, and Journal of Cognitive Education. Dr. Ortiz trains and consults nationally and internationally for various federal, state, regional, and local educational agencies, conducts and supervises research in the schools, and has published widely on a variety of topics including nondiscriminatory assessment, evaluation of English learners, cross-battery assessment, and learning disabilities.

Dr. Dawn P. Flanagan is Professor of Psychology at St. John’s University in Queens, NY. She is also an Affiliate Clinical Professor at Yale Child Study Center, Yale University School of Medicine in New Haven, CT. In addition to her teaching responsibilities in the areas of cognitive assessment, specific learning disabilities, and professional issues in school psychology, she serves as an expert witness, SLD consultant, and test/measurement consultant and trainer for organizations both nationally and internationally. She is a widely published author of books, book chapters, and articles. Her most recent books include Essentials of WISC-V Assessment; Clinical Use and Interpretation of the WJ IV: Scientist-Practitioner Perspectives; and Essentials of Planning, Selecting and Tailoring Interventions for Unique Learners. Dr. Flanagan is also co-author of the Cross-Battery Assessment Software System (X-BASS). She is a Fellow of the American Psychological Association and a Diplomate of the American Board of Psychological Specialties. Dr. Flanagan recently received the national Outstanding Contributions to Training award from Trainers in School Psychology in recognition of her widespread and influential training that she continues to do for school psychologists throughout the country and abroad. Dr. Flanagan is best known for the development of the Cross-Battery Assessment (XBA) approach and the development of an operational definition of specific learning disability, known as the Dual Discrepancy/Consistency “PSW” approach to SLD identification (or DD/C model). Her forthcoming books include Essentials of Specific Learning Disability Identification – Second Edition and Contemporary Intellectual Assessment: Theories, Tests, and Issues – Fourth Edition.

Dr. Vincent C. Alfonso is the dean of the School of Education at Gonzaga University. He is past president of Division 16 (School Psychology) of the American Psychological Association (APA), fellow of Divisions 5, 16, and 43 of the APA, and a certified school psychologist and licensed psychologist. He has been providing psychoeducational services to individuals across the life span for more than 25 years. He is the coeditor with Dawn Flanagan of Essentials of Specific Learning Disability Identification, (2nd edition) and coauthor of Essentials of Cross-Battery Assessment (3rd edition).

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