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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.
The current version of the test, the WAIS-IV, which was released in 2008, is composed of 10 core subtests and five supplemental subtests, with the 10 core subtests yielding scaled scores that sum to derive the Full Scale IQ. With the WAIS-IV, the verbal/performance IQ scores from previous versions were removed and replaced by the index scores.
For example, employee selection tests are often validated against measures of job performance (the criterion), and IQ tests are often validated against measures of academic performance (the criterion). If the test data and criterion data are collected at the same time, this is referred to as concurrent validity evidence.
The popular shortening of IQ tests, especially those intended for children, is primarily due to the increasingly heavy workloads of school psychologists. Experts have historically argued that these shorter tests are less accurate. The WRIT is an attempt to optimize accuracy in a short-form IQ test that includes fewer subtests. [5]
Various self-tests of intelligence are offered online on the internet. The self-tests should be treated as entertainment. [2] The official website of Mensa International, which is the largest and oldest high IQ society in the world, [3] does not offer an online IQ test. It does offer an online quiz for entertainment purposes called the "Mensa ...
Intelligence quotient (IQ) tests do correlate with one another and that the view that the general intelligence factor (g) is a statistical artifact is a minority one. IQ scores are fairly stable during development in the sense that while a child's reasoning ability increases, the child's relative ranking in comparison to that of other ...
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