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The Wechsler Adult Intelligence Scale (WAIS) is an Intelligence Quotient (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.
David Wechsler, developer of the Wechsler–Bellevue Scale of 1939 (which was later developed into the Wechsler Adult Intelligence Scale) popularized the use of "deviation IQs" as standard scores of IQ tests rather than the "quotient IQs" ("mental age" divided by "chronological age") then used for the Stanford–Binet test. [67]
The WISC is one test in a suite of Wechsler intelligence scales. Subjects 16 and over are tested with the Wechsler Adult Intelligence Scale (WAIS), and children ages two and half years to seven years and seven months are tested with the Wechsler Preschool and Primary Scale of Intelligence (WPPSI). There is some overlap between tests: children ...
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.
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.
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 DSST contained in the Wechsler Adult Intelligence Scale is called 'Digit Symbol' ... WAIS-III (but not WAIS-IV [5] ... Scores (mean, 25th percentile, 75th ...
David "Weshy" Wechsler (/ ˈ w ɛ k s l ər /; January 12, 1896 – May 2, 1981) was a Romanian-American psychologist.He developed well-known intelligence scales, such as the Wechsler Adult Intelligence Scale (WAIS) and the Wechsler Intelligence Scale for Children (WISC) to get to know his patients at Bellevue Hospital.