Elaine Fletcher-Janzen, Ph.D., teaches at the University of Northern Colorado and consults to area school districts. She also serves as a trainer for American Guidance Systems, a publisher of clinical assessment instruments for school psychologists. She is the coeditor of the Handbook of School Neuropsychology (with Cecil Reynolds and Rik D'Amato).

Cecil Reynolds, Ph.D., is Professor of Educational Psychology and Professor of Neuroscience at Texas A&M University. He is the author or editor of numerous books, including the Handbook of School Psychology (with Terry Gutkin, Wiley), and several Essentials books (Essentials of Behavioral Assessment, with Randy Kamphaus and Michael Ramsay, and Essentials of Assessment with Brief Intelligence Tests, with Liz Lichtenberger). He has also developed a number of psychological assessment instruments, including the RIAS (published by PAR) and the BASC (published by AGS).

Both authors have collaborated on several previous projects, including the Encyclopedia of Special Education, Second Edition, the Concise Encyclopedia of Special Education, Second Edition, and the Childhood Disorders Diagnostic Desk Reference.