![]() This subtest measures quantitative and analogical reasoning. Working within a specified time limit, the examinee views a scale with missing weight(s) and selects the response option that keeps the scale balanced. This subtest measures nonverbal reasoning, and the ability to analyze and synthesize abstract visual stimuli. Working within a specified time limit, the examinee views a completed puzzle and selects three response options that, when combined, reconstruct the puzzle. This subtest measures fluid intelligence, broad visual intelligence, classification and spatial ability, knowledge of part-whole relationships, simultaneous processing, and perceptual organization. The examinee views an incomplete matrix or series and selects the response option that completes the matrix or series. This subtest measures the ability to analyze and synthesize abstract visual stimuli. Working within a specified time limit, the examinee views a model and a picture, or a picture only, and uses red-and-white blocks to re-create the design. This subtest measures verbal reasoning and conceptualization, verbal comprehension and expression, the ability to evaluate and use past experience, and the ability to demonstrate practical knowledge and judgment. The examinee answers questions based on his or her understanding of general principles and social situations. This subtest measures the ability to acquire, retain, and retrieve general factual information. The examinee answers questions that address a broad range of general knowledge topics. This subtest measures word knowledge and verbal concept formation. For verbal items, the examinee defines words that are presented visually and orally. This subtest measures verbal concept formation and reasoning.įor picture items, the examinee names the object presented visually. The examinee is presented two words that represent common objects or concepts, and describes how they are similar. (The preious verison was the WAIS-III (1997), had 14 subtests, previous version the WAIS-R (1981), had 11 subtests, both editions were divided into two parts, verbal and performance.) 3 New Subtests – Visual Puzzles, Figure Weights, Cancellation.Similarities, Vocabulary, Information, Comprehensionīlock Design, Matrix Reasoning, Picture Completionĭigit Span, Arithmetic, Letter-Number Sequencing 12 Subtests Retained with Modifications:.Object Assembly, Picture Arrangement, Coding Recall (Digit Symbol-Incidental Learning), and Coding Copy (Digit Symbol-Copy) Renamed Perceptual Organization Index (POI) as the Perceptual Reasoning Index (PRI) This edition added 2 more now has 4 Index Scores (VCI, PRI, WMI, & PSI), WAIS-III had 2 Index Scores: Verbal (VIQ) and Performance IQ (PIQ) Wechsler Adult Intelligence Scale®- Fourth Edition, 2008 WECHSLER ADULT INTELLIGENCE SCALE ® - 4th EDITION By David Wechsler WAIS-IV It is an individually administered clinical instrument for m easuring an adult's intellectual ability age 16 years through 90.11 years.
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