Ruth Luckasson, Robert L. Schalock, Deborah M. Spitalnik, Scott Spreat, Marc Tassé, Martha E. Snell, David L. Coulter, Sharon A. Borthwick-Duffy, Alison Alya Reeve, Wil H.E. Buntinx, and Ellis (Pat) M. Craig

"Understanding the new definition and system of supports is essential to anyone delivering services today or planning for the future."Ohio Developmental Disabilities Council

"This book will be a useful resource for both professionals and lay persons who are interested in, work with, or are advocates for individuals with either a diagnosis of mental retardation or individuals who score within normal levels on IQ tests, but have significant limitations in adaptive skills." Psychological Record

"This is a complete reference on understanding what mental retardation is, diagnosing the condition, and planning a customized, supports needs profile for an individual.  Mental Retardation is the only definition and classification system based entirely on the concept of supports, which views intellectual disability as a condition that can be enhanced with the provision of appropriate support strategies. Developed over 10 years by an international panel of experts, Mental Retardation is the most progressive disability diagnostic system available for persons with intellectual disabilities. Intellectual and Developmental Disabilities

Features and benefits
-Discusses five key assumptions on which the new definition is built.
-Addresses the role of intelligence in mental retardation diagnosis.
-Defines adaptive behavior by conceptual, social, and practical components.
-Expands discussion of critical issues in clinical judgment.
-Integrates DSM-IV and ICD-9 diagnoses and addresses relationship with other classification systems.
-Assesses strengths and limitations in critical life areas.
-Describes the optimal environment for independent functioning.
-Helps develop a profile of needed supports.
-Recommends activities to improve functioning in key dimensions.
-Monitors progress and evaluate personal outcomes.