Dr. Ortiz is Professor of Psychology at St. John's University, 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 APA Division 16 (School Psychology), as a member of the APA Presidential Task Force on Educational Disparities, as member and Chair of APA’s, Committee on Psychological Tests and Assessment, member of the Coalition for Psychology in Schools and Education, and member of the New York State Committee of Practitioners on English Language Learners and Limited English Proficient Students. Dr. Ortiz serves or has served on various editorial boards including Journal of School Psychology, School Psychology Quarterly, and Journal of Applied School Psychology. Dr. Ortiz trains and consults nationally and internationally, conducts 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. He is author of numerous articles, books, chapters, and software programs. His recent books include “Assessment of Culturally and Linguistically Diverse Students: A practical guide,” and “Essentials of Cross-Battery Assessment, 3rd Edition.” Dr. Ortiz is bilingual (Spanish) and bicultural (Puerto Rican).