Dina M. Brulles, Ph.D., is the director of gifted education in Arizona's Paradise Valley Unified School District as well as the Gifted Program Coordinator at Arizona State University. Recognized for her expertise in creating and supervising schoolwide cluster grouping, she also assists districts throughout the United States in developing gifted education programs, including those districts serving culturally and linguistically diverse gifted students. She holds a Ph.D. in gifted education and an M.S. in curriculum and instruction from Arizona State University. Prior to becoming an administrator, Dina was an elementary classroom teacher, a bilingual teacher, an ESL teacher, and a gifted-cluster teacher. She lives in Peoria, Arizona. Kimberly Lansdowne, Ph.D., is the founding executive director of the Herberger Young Scholars Academy, a secondary school for highly gifted students at Arizona State University (ASU). She received her doctorate at ASU and has a lengthy career in teaching and administration at universities, colleges, public and private schools. At ASU, she develops and teaches undergraduate and graduate level education classes on curriculum, instruction, testing, measurement, and special needs. Previously, Dr. Lansdowne was the director of gifted services at Scottsdale School District and now consults nationally with school districts on effective teaching strategies for gifted and talented students. She lives in Phoenix, Arizona. Jack A. Naglieri, Ph.D., has held faculty appointments at Northern Arizona University, The Ohio State University, and George Mason University. He is currently a research professor at the University of Virginia, senior research scientist at the Devereux Center for Resilient Children, and emeritus professor of psychology at George Mason University. Dr. Naglieri has developed many tests used by psychologists and educators such as the Naglieri Nonverbal Ability Test, the Cognitive Assessment System, Autism Spectrum Rating Scale, Devereux Student Strength Assessment, and Comprehensive Executive Function Inventory. He is widely known for his efforts to increase participation of traditionally underrepresented students in gifted education and remains an active presenter on related topics. Dr. Naglieri is committed to equitable and valid assessment though high-quality tests and rating scales and a continual effort to help professionals make positive differences in the lives of the students they evaluate. He lives near Washingt