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An intelligence quotient (IQ) is a total score derived from a set of standardized tests or subtests designed to assess human intelligence. [1] Originally, IQ was a score obtained by dividing a person's mental age score, obtained by administering an intelligence test, by the person's chronological age, both expressed in terms of years and months.
Verbal intelligence is the ability to understand and reason using concepts framed in words. More broadly, it is linked to problem solving, abstract reasoning, [1] and working memory. Verbal intelligence is one of the most g-loaded abilities. [2]
The earliest terms for classifying individuals of low intelligence were medical or legal terms that preceded the development of IQ testing. [10] [11] The legal system recognized a concept of some individuals being so cognitively impaired that they were not responsible for criminal behavior. Medical doctors sometimes encountered adult patients ...
It is also essential to understand which cognitive abilities are measured by each test and sub-test. [1] There are also free, searchable websites with compendia of tests and the constructs they measure. Below are a small sample of some of the best-known measures of cognitive abilities and brief descriptions of their content: Inductive reasoning ...
One hindrance to widespread understanding of the test is its use of a variety of different measures. In an effort to simplify the information gained from the Binet–Simon test into a more comprehensible and easier to understand form, German psychologist William Stern created the well known Intelligence Quotient (IQ).
It generates a Full Scale IQ (formerly known as an intelligence quotient or IQ score) that represents a child's general intellectual ability. It also provides five primary index scores, namely Verbal Comprehension Index, Visual Spatial Index, Fluid Reasoning Index, Working Memory Index, and Processing Speed Index.
The Cattell–Horn–Carroll theory is an integration of two previously established theoretical models of intelligence: the theory of fluid and crystallized intelligence (Gf-Gc) (Cattell, 1941; Horn 1965), and Carroll's three-stratum theory (1993), a hierarchical, three-stratum model of intelligence. Due to substantial similarities between the ...
There are a variety of disabilities affecting cognitive ability.This is a broad concept encompassing various intellectual or cognitive deficits, including intellectual disability (formerly called mental retardation), deficits too mild to properly qualify as intellectual disability, various specific conditions (such as specific learning disability), and problems acquired later in life through ...