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Idiot indicated the greatest degree of intellectual disability in which a person's mental age is below three years. Imbecile indicated an intellectual disability less severe than idiocy and a mental age between three and seven years. Moron was defined as someone a mental age between eight and twelve. [85]
The Wechsler Adult Intelligence Scale (WAIS) is an IQ test designed to measure intelligence and cognitive ability in adults and older adolescents. [1] For children between the ages of 6 and 16, Wechsler Intelligence Scale for Children (WISC) is commonly used.
Intellectual disability (ID), also known as general learning disability (in the United Kingdom), [3] and formerly mental retardation (in the United States), [4] [5] [6] is a generalized neurodevelopmental disorder characterized by significant impairment in intellectual and adaptive functioning that is first apparent during childhood.
The test comprises 50 written words in British English which all have irregular spellings (e.g. "aisle"), so as to test the participant's vocabulary rather than their ability to apply regular pronunciation rules. The manual includes equations for converting NART scores to predicted IQ scores on the Wechsler Adult Intelligence Scale.
This category is for individuals with an intelligence quotient score below 70 on a standardized IQ test. [1] Any article included here should have a verifiable proof for the intellectual impairment in its references (i.e., tested IQ test score or formal diagnosis as having any form of intellectual disability ).
These ideas included things such as discouraging individuals with low IQ from having children and granting important positions based on high IQ scores. While there was significant opposition, many institutions proceeded to adjust students' education based on their IQ scores, often with a heavy influence on future career possibilities (Leslie ...
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[1] [2] The word arises from the Latin word imbecillus, meaning weak, or weak-minded. [3] It originally referred to people of the second order in a former and discarded classification of intellectual disability, with a mental age of three to seven years and an IQ of 25–50, above "idiot" (IQ below 25) and below "moron" (IQ of 51–70). [4]