Table 2
| Participant no. 1 WAIS-IV subtests | Age-scaled score | Difference | Percentile | Qualitative description |
| Similarities | 1 | −2.13 | 0.1 | Impaired |
| Vocabulary | 2 | −1.13 | 0.4 | Impaired |
| Information | 3 | −0.13 | 1 | Impaired |
| Comprehension | 3 | −0.13 | 1 | Impaired |
What does the visual puzzle test measure?
In the Visual Puzzles subtest, the examinee views a completed puzzle and selects three options that when combined in the mind's eye reconstruct the puzzle. Visual Puzzles is a new subtest designed to measure nonverbal reasoning and the ability to analyze and synthesize abstract visual stimuli [8]. Click to see full answer.
Which measures contribute the most variance to visual puzzles performance?
neuropsychological measures. Hierarchical regression analysis was used to determine which measures contributed the most variance to Visual Puzzles. Visual Puzzles correlated Puzzles performance.
What is Matrix Reasoning on WAIS IV?
Matrix Reasoning: Is a task that is presented in a visual format and measures non-verbal abstract problem solving, inductive reasoning, and spatial reasoning ability. Additionally, what is symbol search on WAIS IV?
What is the role of the WAIS in the diagnosis of cerebral lesions?
The WAIS as a lateralizing and localizing diagnostic instrument: a study of 656 patients with unilateral cerebral lesions. Neuropsychologia. 1986;24(2):223–239. [ PubMed] [ Google Scholar] 54. Benton AL, de Hamsher K, Sivan AB.
What is the difference between block design and visual puzzles?
The VSI is derived from two subtests. During Block Design (BD), Sample viewed a model and/or picture and used two-colored blocks to re-create the design. Visual Puzzles (VP) required her to view a completed puzzle and select three response options that together would reconstruct the puzzle.
What does each WAIS subtest measure?
The subtest was developed to measure non-verbal reasoning and the ability to understand abstract visual information. The individual is presented with a picture of a pair of scales in which there are missing weights, and they have to choose the correct weights to keep the scales in balance.
What are the WAIS-IV subtests?
The WAIS-IV has 10 core subtests (Arithmetic, Block Design, Comprehension, Digit Span, Digit Symbol, Information, Letter-Number Sequencing, Matrix Reasoning, Picture Arrangement, Picture Completion, Processing Speed, Object Assembly, Similarities, Symbol Search, and Vocabulary) which make up four index scores, ...
What types of skills do the Wechsler subtests measure?
The WAIS-IV comprises a full scale IQ, as well as indexes on four factors: verbal comprehension, perceptual reasoning, working memory and processing speed.
What is the WAIS IV?
In the WAIS-IV, these abilities include measures of crystallized intelligence (Gc), fluid reasoning (Gf), general spatial visualization (Gv), short-term memory (Gsm), and processing speed (Gs). The WAIS-IV also provides a measure of quantitative reasoning (QR) at Stratum II unlike other intelligence tests.
What is the 4th edition of Wechsler?
The Wechsler Adult Intelligence Scale —Fourth Edition released in 2008 is the most current edition of the Wechsler Intelligence Scales dating from the initial Wechsler-Bellevue first published in 1939 [ 1 ]. Loring and Bauer note that the conormed Wechsler Adult Intelligence Scales and the Wechsler Memory Scales are the two most common psychological tests used in clinical care and research in neurology [ 2 ]. There have been significant structural and content changes in the Fourth Edition. These changes include the addition of three new subtests of Visual Puzzles, Figure Weights, and Cancellation as well as the deletion of Object Assembly and Picture Arrangement from the WAIS-III. Added benefits for this new instrument include lower floor items and much higher difficult ceiling items, thereby providing greater measurement stability at lower and higher ability levels. Loring and Bauer cautioned that there are presently insufficient data on neurological populations to ensure appropriate application of the WAIS-IV for neuropsychological evaluations. While we agree with Loring and Bauer on this point, there are still 12 subtests that aside from some new content additions and updates are largely unchanged. This study is an effort to integrate and synthesize the extant data on the cognitive psychological, neuropsychological, and functional neuroimaging literatures on the correlates of the three new tasks of Visual Puzzles, Figure Weights, and Cancellation.
When was the Wechsler 4th edition released?
The Wechsler Adult Intelligence Scale—Fourth Edition released in 2008 is the most current edition of the Wechsler Intelligence Scales dating from the initial Wechsler-Bellevue first published in 1939 [1]. Loring and Bauer note that the conormed Wechsler Adult Intelligence Scales and the Wechsler Memory Scales are the two most common psychological ...
What was the participant 2's FSIQ?
Participant 2 was a 64-year-old right-handed male with five years of college education that had sustained a large infarct in the left inferior frontal lobe as a result of an anterior communicating artery aneurysm ( Figure 2 ). He was assessed 31 months after stroke, and his premorbid FSIQ was estimated in the high average range at 117. Participant 2 demonstrated poor verbal abstraction, verbal working memory impairment, poor verbal sequencing, poor auditory memory, poor olfactory discrimination, verbal proactive interference, verbal perseveration, and poor executive functions.
How many subtests are there in WISC IV?
The WISC-IV has 15 subtests, 10 of which are core subtests that are usually used to measure the four index scores and Full Scale IQ. The other five are supplemen-tary subtests that can be used if for some reason a core subtest cannot be used or is not appropriate for a particular child.
What is the purpose of the Peach and Apple test?
The test is designed to assess verbal reasoning and the development of concepts.
Can intellectual ability be measured?
It is a central theme of the book that true intellectual ability cannot be measured accurately in the low range. It follows from this that we should not be using cut-off points in diagnosis or making statements about what an individual’s IQ is without a lot of qualification with regard to the test error. However, as things are at the moment, with intellectual disability still being defined in terms of an IQ cut-off point, it is likely that psycho logists will be called upon to make an estimate of what somebody’s true intellectual ability is. What I want to do in this appendix is to look at how we can get the best estimate of an individual’s true intellectual ability.
