"Intellectual Disability provides a developmental approach for the assessment, diagnosis, and treatment of persons with intellectual disability throughout the life span. Moving away from the older concept of mental retardation, which implies a static condition, this book focuses on intellectual disability as a dynamic and changing condition where early diagnosis and intervention matter and make a difference in long-term outcome. It highlights the importance of fluid intelligence and adaptive problem solving to facilitate cognitive development and self-determination throughout the developmental period."--BOOK JACKET.