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Which subtests are included in the WAIS standard battery?
Verbal Comprehension: similarities, vocabulary, information
Perceptual Reasoning: block design, matrix reasoning, visual puzzles
Working Memory: digit span & arithmetic
Processing Speed: symbol search & coding
what does Verbal Comprehension subtest measure
similarities, vocabulary, information (verbal acquired knowledge and verbal reasoning for the individual)
what does perceptual reasoning measure
block design, matrix reasoning, visual puzzles (ability to identify relationships between non-verbal objects and tests their reasoning skills)
what does Working Memory
digit span & arithmetic (ability to keep their attention, concentrate, and show mental control)
what does Processing Speed measure
symbol search & coding (ability in processing simple or typical visual stimuli without error)
Similarities
is one subtest under the Verbal Comprehension section. This requires the individual to be presented with two words that are common objects/concepts and describe how they are similar.
Vocabulary
is another subtest under the Verbal Comprehension section. This requires the individual at first to be presented with pictures that they must name what the object is. For the verbal portion, the individual must define the words that are presented both visually and orally.
Information
is the final subtest under Verbal Comprehension. This requires the individual to answer questions that address a range of knowledgeable topics.
Block Design
is the first subtest under Perceptual Reasoning Composite. While being timed, the client views a model picture and uses the red and white blocks to recreate the picture.
Matrix Reasoning
is the next subtest under Perceptual Reasoning Composite. This requires the individual to look at an incomplete matrix and pick the option that completes the matrix.
Visual Puzzles
is the last subtest in the Perceptual Reasoning Composite. This subtest requires the individual to look at a completed puzzle and then select three responses that would reconstruct the puzzle when put together.
Digit Span
is the first subtest under the Working Memory Composite. The client is asked to recall the numbers that the examiner reads aloud to them exactly how they say, backward, and in sequential order.
Arithmetic
is the next subtest under the Working Memory Composite. The client is asked to do mathematical problems in their head while being timed on how fast they answer the questions.
Symbol Search
is the first subtest in the Processing Speed Composite. This section requires the client to search for a match in pictures and cross out the picture when they find it mixed into a group of different pictures. the client is to work as fast as they can to do as many in under 2 minutes as possible.
Coding
the next subtest in the Processing Speed Composite. This section requires the client to label each number with the symbol is corresponds with as fast as they can to get as many done in under 2 minutes.
For which age range is the WAIS validated?
16-99
Which subtests are timed?
Block Design, Visual Puzzles, Arithmetic, Symbol Search, and Coding
Which subtests load onto which composite scores?
Verbal Comprehension: similarities, vocabulary, information
Perceptual Reasoning: block design, matrix reasoning, visual puzzles
Working Memory: digit span & arithmetic
Processing Speed: symbol search & coding
What does each composite score measure?
FSIQ: representative of general intellectual functioning (g)/general intelligence
VCI: verbal concept formation, verbal reasoning, & knowledge acquired from one’s environment
PRI: perceptual and fluid reasoning, spatial processing, & visual-motor integration
WMI: working memory which involves attention, concentration, mental control & reasoning; ability to temporarily retain info in memory, perform mental operation/manipulation of it & produce a result
PSI: ability to quickly & correctly scan, sequence, or discriminate simple visual info; short-term visual memory, attention, & visual-motor coordination
What is the appropriate pace for administering digit span items?
Read at one digit per second
What are some strategies for maintaining rapport during a WAIS administration?
Your full attention; A confident, relaxed approach can elicit cooperation and ease his/her uncertainty or anxiety about the test. Begin the session by putting the examinee at ease with informal conversation about their interests/activities. Once you believe an acceptable level of rapport has been established, introduce the test as instructed.
How do raw scores differ from standard scores/ scaled scores?
Raw scores are calculated without any form of adjustment from the testing booklet. The scaled scores are adjusted from the raw scores to a standardized scale. Scaled scores allow for more accurate comparisons across all testing of the given assessment.
What is percentile rank?
Percentile Rank is the percentage of the population within your age range that you performed as well as or better than on the given assessment.
Ex. If you scored in the 98th percentile, you scored as well as or better than 98% of people who are in your age group on the assessment.
What is a confidence interval?
A confidence interval is a range of values where you can assume that an individual will likely score within the range each time they take the test.
Ex. If someone’s FSIQ composite score was an 89 on the WAIS, the 95% confidence interval is a 85-93. This means that if the examinee takes the same test again, they will likely score within the range of 85-93.