The highly acclaimed addresses issues of importance ranging from theory to practice and is a critical reference for researchers as well as those working in the special education field. This completely updated and comprehensive A-Z reference includes about 200 new entries, with increased attention given to those topics that have grown in importance since the publication of the third edition, such as technology, service delivery policies, international issues, neuropsychology, and RTI. The latest editions of assessment instruments frequently administered in special education settings are discussed. Comprehensive and thoroughly up to date, this is the essential, A-Z compilation of authoritative information on the education of those with special needs.