18 Questions
What is the method of obtaining the full-scale IQ on the WAIS-III?
By summing the age-corrected scaled scores of the verbal and performance subtests
What is the standard deviation of the scaled score on the WAIS-III?
3
Which index score is believed to be a measure of fluid intelligence?
Perceptual organization
What is the primary function of working memory?
To hold and manipulate information mentally
What is the verbal comprehension index a measure of?
Crystallized intelligence
What is the primary focus of the processing speed index?
To measure how quickly your mind works
What is the primary objective of the Symbol Search subtest in WAIS-III?
To assess speed of information processing
What is the mean of the verbal IQ in the WAIS-III?
100
How are the raw scores for the performance subtests converted in the WAIS-III?
They are converted to scaled scores
What is the purpose of comparing the summed scaled scores with the standardization sample in the WAIS-III?
To calculate the deviation IQ scores
Which of the following is a characteristic of the full-scale IQ in the WAIS-III?
It has a mean of 100 and a standard deviation of 15
What is the significance of the standardization sample in the WAIS-III?
It provides a norms for the test scores
What is the primary advantage of the deviation IQ method in expressing intelligence test results?
It allows for the comparison of IQ scores across different age groups
What is the standard deviation of the deviation IQ in the Stanford-Binet Scale (fifth edition)?
15
What is the characteristic of the routing tests in the Stanford-Binet Scale (fifth edition)?
They contain similar content of increasing difficulty
What is the theoretical framework that underlies the latest editions of the Stanford-Binet Scale?
The gf-gc theory of intelligence
What is the hierarchical structure of the gf-gc theory of intelligence?
g is at the top, followed by group factors and then specific abilities
What is the purpose of the routing measures in the Stanford-Binet Scale (fifth edition)?
To determine the starting point for the test administration
Study Notes
WAIS-III Scores
- The full-scale IQ is obtained by summing the age-corrected scaled scores of the verbal and performance subtests and comparing the subject to the standardization sample.
- The mean of the full-scale IQ is 100 and the standard deviation is 15.
Index Scores
- The WAIS-III provides four index scores: verbal comprehension, perceptual organization, working memory, and processing speed.
- Verbal comprehension index measures crystallized intelligence, which involves acquired knowledge and verbal reasoning.
- Perceptual organization index measures fluid intelligence, which involves problem-solving and thinking.
Working Memory and Processing Speed
- Working memory refers to the information held in one's mind, in contrast to long-term memory.
- Working memory is responsible for performing mental calculations, such as solving math problems.
- Processing speed index measures how quickly one can process information.
Subtests
- The symbol search subtest measures speed of information processing and cognitive processing.
- The task involves identifying target geometric figures among a set of search figures.
Verbal and Performance IQs
- Verbal IQ is obtained by summing the age-corrected scaled scores of the verbal subtests and comparing with the standardization sample.
- Performance IQ is obtained by summing the age-corrected scaled scores of the performance subtests and comparing with the standardization sample.
- Both verbal and performance IQs have a mean of 100 and a standard deviation of 15.
Deviation IQ Method
- The deviation IQ method is considered the most precise way of expressing the results of an intelligence test.
- The method involves correcting for differences in variability, allowing for comparison of IQs across different age groups.
Stanford-Binet Scale
- The fifth edition of the Stanford-Binet Scale represents an integration of the age scale and point scale formats.
- The examination begins with one of two routing measures (subtests): one nonverbal and one verbal.
- The scale is based on the gf-gc theory of intelligence, which incorporates a hierarchical model of intelligence.
Test your knowledge of the Symbol Search subtest in the Wechsler Adult Intelligence Scale III (WAIS-III), a measure of intelligence. Learn about the task and its significance in assessing cognitive processing speed.
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