Computing and Library Services - delivering an inspiring information environment

Intellectual disability: An inability to cope with the real world (not an inability to cope with IQ tests)

Whitaker, Simon (2018) Intellectual disability: An inability to cope with the real world (not an inability to cope with IQ tests). In: 6th International Conference of SIVUS International, 4 to 5th October 2018, The Ramkrishna Mission Institute of Culture’, Golpark, Kolkata, West Bengal, India..

[img] Microsoft PowerPoint (Power point slides of the presentation) - Accepted Version
Download (70kB)


There is an agreed international definition of ID (ICD-11, DSM-V, AAIDD):
• Significantly low intellectual ability (usually taken as IQ 70 or 75).
• Significantly low level of adaptive/social behaviour (often defined as two Standard Deviations below the population mean in the composite measure of in two sub scales).
• All occurring before the age of 18 years.

But there are some problems with this definition.
• It is a condition largely created by definition, with arbitrary IQ and adaptive behaviour cut off scores.
• It appears to be the only condition in DSM-V based on test scores.
• The tests of IQ and adaptive behaviour are not accurate in low range even when used on the population for which they were standardized. This can lead to misdiagnosis.
• The question as to what IQ tests mean when used on groups for which the test was not standardized, has not been adequately address. We do know that different populations have different mean IQs but we don’t know why this is, or what the test results predict, or mean.

We need to move to definitions based far more on clinical judgment and less on test scores. For example: An inability to cope with the intellectual demands of ones environment.

Item Type: Conference or Workshop Item (Keynote)
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Schools: School of Human and Health Sciences
Depositing User: Simon Whitaker
Date Deposited: 17 Oct 2018 08:31
Last Modified: 28 Aug 2021 12:25


Downloads per month over past year

Repository Staff Only: item control page

View Item View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©