What does the WAIS distinguishes between?
The WAIS distinguishes between: verbal and nonverbal ability. What is the most widely used intelligence test?
What is the difference between Binet and Wechsler?
As you might remember from reading about the history of intelligence testing, scores on the early Stanford-Binet were derived from dividing mental age by chronological age. On the WAIS, Wechsler instead compared scores of the test-taker to those of others in his or her general age group.
What are the WAIS IV subscales?
The verbal tests were: Information, Comprehension, Arithmetic, Digit Span, Similarities, and Vocabulary. The Performance subtests were: Picture Arrangement, Picture Completion, Block Design, Object Assembly, and Digit Symbol. A verbal IQ, performance IQ and full scale IQ were obtained.
What are WAIS IV similarities?
It measures nonverbal reasoning skills and taps into thinking that is more fluid and requires visual perceptual abilities. This index reflects an individual’s ability to take in and hold information in immediate awareness and then perform a mental operation on that information.
What is the difference between the WAIS and the WISC?
The WAIS-III produced a significantly higher mean Full Scale IQ score than the WISC-IV, in a sample of 16 year olds who attended special school. The difference between the mean Full Scale IQ score on the WAIS-III and the WISC-IV was 11.82 points, with the WAIS-III scoring higher.
What do WAIS subtests 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 is WAIS-IV?
The Wechsler Adult Intelligence Scale | Fourth Edition (WAIS-IV) is the most advanced adult measure of cognitive ability, based on recent research in the area of cognitive neuroscience and the theories and work of David Wechsler PhD.
What is perceptual reasoning WAIS?
Perceptual Reasoning Index: A measure of an individual’s ability to understand visual information and to solve novel abstract visual problems. This is what we are referring to when we speak about an individual’s measured IQ.
What does perceptual reasoning measure on the WAIS IV?
Perceptual Reasoning Index: A measure of an individual’s ability to understand visual information and to solve novel abstract visual problems.
What is the current version of the WAIS test?
Description 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 comprising the Full Scale IQ. With the new WAIS-IV, the verbal/performance subscales from previous versions were removed and replaced by the index scores.
What is the standard deviation of the WAIS IV?
The WAIS-IV was standardized on a sample of 2,200 people in the United States ranging in age from 16 to 90. An extension of the standardization has been conducted with 688 Canadians in the same age range. The median Full Scale IQ is centered at 100, with a standard deviation of 15.
What is the WAIS-IV processing speed index?
The WAIS-IV Processing Speed Index is a Core measure in the Neuropsychological Impairment Domain in Wilde et al.(2010). The WAIS-IV Letter-Number Sequencing and Digit Span subtests are Supplemental measures in the Neuropsychological Impairment Domain Wilde et al. (2010).
Why is the WAIS more popular than the Wechsler tests?
Because the Wechsler tests included non-verbal items (known as performance scales) as well as verbal items for all test-takers, and because the 1960 form of Lewis Terman ‘s Stanford-Binet Intelligence Scales were less cautiously developed than previous versions, Form I of the WAIS surpassed the Stanford-Binet tests in popularity by the 1960s.