Intellectual Disabilities

M. M. Griffin, Meghan Maureen Burke, R. M. Hodapp

Research output: Chapter in Book/Report/Conference proceedingChapter


Individuals with intellectual disabilities have unique and varied behavioral issues and consequent needs. The definition of an intellectual disability is three-pronged: having subaverage intelligence and impaired adaptive behavior, both of which manifest before the age of 18. Different types of intellectual disabilities exist; certain genetic conditions, such as Williams syndrome, Prader-Willi syndrome, and Down syndrome, are associated with certain behavioral characteristics and outcomes. In addition to having an intellectual disability, many of these individuals have additional diagnoses of mental health disorders. Due to deficits related to their intellectual disabilities, these individuals may need academic, social/adaptive, and mental health interventions.

Original languageEnglish (US)
Title of host publicationEncyclopedia of Human Behavior
Subtitle of host publicationSecond Edition
PublisherElsevier Inc.
Number of pages8
ISBN (Electronic)9780123750006
ISBN (Print)9780080961804
StatePublished - Jan 1 2012
Externally publishedYes


  • Adaptive behavior
  • Autism spectrum disorders
  • Down syndrome
  • Dual diagnosis
  • Inclusive education
  • Intellectual disability
  • Prader-Willi syndrome
  • Universal design
  • Williams syndrome

ASJC Scopus subject areas

  • Psychology(all)

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