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The WRIT is an attempt to optimize accuracy in a short-form IQ test that includes fewer subtests. [5] The test was developed with a stratified sample of 2,285 people aged 4 to 85. [1] The test was published by British testing company Pearson in 2000; its manual was written by Joseph Glutting, Wayne Adams, and David Sheslow.
Her study in 1969 which tested the QT on 2,213 male students found that the QT had a validity coefficient range of r = 0.37 to r = 0.68 when the QT scores are correlated with several short-form intelligence measures, which included an anagram task and a numerical reasoning test battery. [4] The QT results also correlate well with the Wechsler ...
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.
The test is currently in its second edition, published in 2015. [2]Both editions are suitable for evaluation of intellectual giftedness, [3] and high scores are accepted as qualifying evidence for high IQ societies such as Intertel (min. IQ ≥ 135) and American Mensa (min. IQ ≥ 130).
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.
[31] [32] Not all report test results as "IQ", but most now report a standard score with a mean score level of 100. When a test-taker scores higher or lower than the median score, the score is indicated as 15 standard score points higher or lower for each standard deviation difference higher or lower in the test-taker's performance on the test ...