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The previous 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.
Wechsler Adult Intelligence Scales 1981 Classification [73] IQ Range ("deviation IQ") IQ Classification Actual Percent Included Theoretical Percent Included 130 and above Very Superior 2.6 2.2 120–129 Superior 6.9 6.7 110–119 High Average 16.6 16.1 90–109 Average 49.1 50.0 80–89 Low Average 16.1 16.1 70–79 Borderline 6.4 6.7 69 and below
Figure from The Block-Design tests by Kohs (1920) showing, in grayscale, an example of his block test. [1]David Wechsler adapted a block design subtest for his Wechsler-Bellevue test, the predecessor of his WAIS (Wechsler Adult Intelligence Scale), from the Kohs block design test developed in 1920 at Stanford University by Samuel Calmin Kohs.
Patients recovering from traumatic brain injury (on average measuring in severely impaired ranged on the Glasgow Coma Scale) showed high stability in WTAR scores during their recovery period while performing highly similar to demographic estimates, suggesting the test is a reliable estimate of premorbid intelligence in individuals with TBI. [3]
The Stanford–Binet Intelligence Scales (or more commonly the Stanford–Binet) is an individually administered intelligence test that was revised from the original Binet–Simon Scale by Alfred Binet and Théodore Simon. It is in its fifth edition (SB5), which was released in 2003.
One scale that has been developed and used with these tests has been the Wechsler Adult Intelligence Scale which breaks down ones full performance IQ into subsets like verbal IQ and performance IQ, getting more specific and elaborate as the scale for each individual develops. [2] The reliability of this test has been disputed, however.
Wechsler Preschool and Primary Scale of Intelligence: The Wechsler Preschool and Primary Scale of Intelligence (WPPSI) is used to assess the cognitive ability of children ages two years and six months old to seven years and seven months old. The current version of the test is the fourth edition (WPPSI-IV).
WAIS may refer to: West Antarctic Ice Sheet; Wechsler Adult Intelligence Scale; Wide area information server (also, Wide area information service) WAIS (AM), a radio station (770 AM) licensed to Buchtel, Ohio, United States; Westchester Academy for International Studies, a charter school in Houston, Texas, United States; Western Australian ...