has seen several revisions over the year the WAIS was updated most recently in 2008, and it is now available in a fourth edition. WAIS-III.В The next edition of the Wechsler Adult Intelligence Scale was launched in 1997.The results of the subtests were grouped to provide a verbal IQ score, performance IQ score, and full-scale IQ score. The Performance subtests were: Picture Arrangement, Picture Completion, Block Design, Object Assembly, and Digit Symbol. The verbal sections included: Information, Comprehension, Arithmetic, Digit Span, Similarities, and Vocabulary. WAIS-R.В This revised version of the original WAIS test was released in 1981 and consisted of six verbal and five non-verbal subtests.The decades since its inception have seen the Wechsler Adult Intelligence Scale revised multiple times: To an extent, this was new territory in intelligence testing, and by the 1960s the WAIS test had become the most popular intelligence test in use. The first edition of the WAIS test included both verbal and non-verbal items within the test, with the non-verbal items known as вЂњperformance scalesвЂќ. This first true version of the WAIS Wechsler test was originally published in 1955 by its namesake David Wechsler. This test was composed of elements of other intelligence tests such as the Binet-Simon scale which was the precursor to the Stanford-Binet Intelligence Scale. A previous version of the test was known as the Wechsler-Bellevue Intelligence Scale (WBIS), which was published in 1939. The Wechsler Adult Intelligence Scale (WAIS) is the most commonly used adult IQ test for measuring intelligence.

Wais iv index scores percentiles