Intellectual Disabilities

  • Stefan C. Dombrowski
Chapter

Abstract

Intellectual disability, formerly mental retardation, is defined fairly consistently across most psychiatric (e.g., DSM, ICD), special education (e.g., IDEA) and organization-based (e.g., AAIDD) systems of classification. The definition generally shares three common core features: (1) deficits in intellectual functioning such as reasoning, problem solving, judgment, and abstract thinking; (2) deficits in adaptive behavior (conceptual, social, and practical) such as communication, daily living skills, and self-care; and (3) occurrence during the developmental period (i.e., before age 18). Each of the major taxonomies (e.g., IDEA, DSM, ICD) also have at the core of their definition and classification approach the requirement for a “dual deficit” in IQ and adaptive behavior. Psychologists working in the schools, where the preponderance of ID classification are offered, must work within the constraints of their respective state codes. State codes are generally aligned with the definition found within IDEA.

Keywords

Down Syndrome Intellectual Disability Intellectual Disability Adaptive Behavior Intellectual Functioning 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media New York 2015

Authors and Affiliations

  • Stefan C. Dombrowski
    • 1
  1. 1.Rider University School Psychology ProgramLawrencevilleUSA

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