Type your tag names separated by a space and hit enter

    Intellectual Disability (Intellectual Developmental Disorder)

    J. Corey Williams, Na Young Ji, M.D.
    Intellectual Disability (Intellectual Developmental Disorder) is a topic covered in the Johns Hopkins Psychiatry Guide.

    To view the entire topic, please or purchase a subscription.

    Official website of the Johns Hopkins Antibiotic (ABX), HIV, Diabetes, and Psychiatry Guides, powered by Unbound Medicine. Johns Hopkins Guide App for iOS, iPhone, iPad, and Android included. Explore these free sample topics:

    Johns Hopkins Guides

    -- The first section of this topic is shown below --

    DEFINITION

    • Intellectual disability (ID), or intellectual developmental disorder, is a disorder originating during the developmental period that is characterized by significant limitations in both:
      • Intellectual functioning (i.e. general mental capacity such as learning, reasoning, and problem solving) and
      • Adaptive behavior (i.e. conceptual, social, and practical adaptive skills)
    • ID is classified under the Neurodevelopmental Disorders section of the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5)[1].
      • DSM-5 does not use intelligence quotient (IQ) cutoffs for severity level of ID (mild, moderate, severe, profound), but rather impairments in conceptual, social, and practical domains.
        • For more information on how DSM-5 handles this cutoffs, please see the DSM-5 itself[1].
    • ID replaces the DSM-IV term "mental retardation" (MR)[2].
      • In this prior multiaxial system, the diagnosis of mental retardation was placed on Axis II.
      • IQ cutoffs for mental retardation in DSM-IV were: mild (IQ 50-55 to ~70), moderate (IQ 35-40 to 50-55), severe (IQ 20-25 to 35-40), and profound (IQ < 20-25).

    -- To view the remaining sections of this topic, please or purchase a subscription --

    Last updated: September 3, 2017

    Citation

    Williams, J. C, and Na Y Ji. "Intellectual Disability (Intellectual Developmental Disorder)." Johns Hopkins Psychiatry Guide, 2017. Johns Hopkins Guide, www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787033/all/Intellectual_Disability__Intellectual_Developmental_Disorder_.
    Williams JC, Ji NY. Intellectual Disability (Intellectual Developmental Disorder). Johns Hopkins Psychiatry Guide. 2017. https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787033/all/Intellectual_Disability__Intellectual_Developmental_Disorder_. Accessed April 23, 2019.
    Williams, J. C., & Ji, N. Y. (2017). Intellectual Disability (Intellectual Developmental Disorder). In Johns Hopkins Psychiatry Guide. Available from https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787033/all/Intellectual_Disability__Intellectual_Developmental_Disorder_
    Williams JC, Ji NY. Intellectual Disability (Intellectual Developmental Disorder) [Internet]. In: Johns Hopkins Psychiatry Guide. ; 2017. [cited 2019 April 23]. Available from: https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787033/all/Intellectual_Disability__Intellectual_Developmental_Disorder_.
    * Article titles in AMA citation format should be in sentence-case
    TY - ELEC T1 - Intellectual Disability (Intellectual Developmental Disorder) ID - 787033 A1 - Williams,J., AU - Ji,Na,M.D. Y1 - 2017/09/03/ BT - Johns Hopkins Psychiatry Guide UR - https://www.hopkinsguides.com/hopkins/view/Johns_Hopkins_Psychiatry_Guide/787033/all/Intellectual_Disability__Intellectual_Developmental_Disorder_ DB - Johns Hopkins Guide DP - Unbound Medicine ER -