where neuropsychological problems with working memory or physical problems affecting processing speed are evident). This provides a measure of intellectual ability that is less dependent on working memory and processing speed, which might be more appropriate for some populations (e.g. In addition to Full-Scale IQ the WAIS-IV also provides a General Ability Index, which is derived from the Verbal Comprehension and Perceptual Reasoning Indices. However, the Verbal IQ and Performance IQ scores provided by earlier versions of the WAIS have been discontinued (similar to the changes in the WISC-IV).
The WAIS-IV provides estimates of Full-Scale IQ, an overall measure of intellectual ability, and four composite Index scores that provide measures of component abilities: Verbal Comprehension, Perceptual Reasoning, Working Memory and Processing Speed. In addition to the inclusion of 3 new subtests, there are changes to the administration of several other subtests, and to the recording and scoring of most of them. The WAIS-IV is a revision of the WAIS-III. The Wechsler Adult Intelligence Scale Fourth UK Edition (WAIS-IV UK) is an individually administered clinical instrument designed to assess the cognitive ability of adolescents and adults aged 16 to 90 years. Pearson Assessment Summary of Test Reviewĭate of Publication of Current Review / Edition: Wechsler Adult Intelligence Scale - Fourth UK edition (WAIS-IV uk)