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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 Wechsler Adult Intelligence Scale—Fourth Edition (WAIS–IV) was published in 2008 by The Psychological Corporation. [31] The Wechsler Intelligence Scale for Children—Fifth Edition (WISC–V) was published in 2014 by The Psychological Corporation, and the Wechsler Preschool and Primary Scale of Intelligence—Fourth Edition (WPPSI–IV ...
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 ...
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 Wechsler Preschool and Primary Scale of Intelligence (WPPSI) is an intelligence test designed for children ages 2 years 6 months to 7 years 7 months developed by David Wechsler in 1967. It is a descendant of the earlier Wechsler Adult Intelligence Scale and the Wechsler Intelligence Scale for Children tests. Since its original publication ...
This is one of the more common tests used to test an individual's intelligence quotient. Throughout its history, this test has been revised multiple times since its creation, starting with the WAIS in 1955, to the WAIS-R in 1981, to the WAIS-III in 1996, and most recently the WAIS-IV in 2008.
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Internal consistency ranges from 0.80-0.98. Test-retest reliability ranges from 0.85-0.98. WIAT–II has been empirically linked with the WISC–IV, the WPPSI–III, and the WAIS–III. These relationships provide valid discrepancy scores to allow comparisons between achievement and ability.