Working Memory Index (WMI) Flashcards
7 cards from real WAIS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Working Memory Index (WMI) flashcards as text
On the WAIS-IV, each individual subtest score is expressed as a scaled score with what mean and standard deviation?
Answer: Mean=10, SD=3
Individual subtest scaled scores use a mean of 10 and SD of 3, while index scores use mean 100, SD 15.
Which WAIS-IV subtest would be most appropriate to substitute for Letter-Number Sequencing if that subtest is spoiled during administration?
Answer: Arithmetic
Arithmetic is the designated supplemental WMI subtest and can substitute for a spoiled Letter-Number Sequencing when needed.
Neuroimaging studies examining WAIS working memory tasks typically show greatest activation in which brain region?
Answer: Prefrontal cortex and parietal areas
Prefrontal and parietal cortices form the core neural network supporting active maintenance and manipulation in working memory.
Which term describes the maximum number of units an individual can hold in working memory at one time, as assessed by tasks like Digit Span?
Answer: Working memory capacity (span)
Working memory capacity or span refers to the upper limit of items an individual can actively hold and manipulate.
If an examinee scores at the 16th percentile on the WMI, what composite standard score does this correspond to?
Answer: 85
The 16th percentile corresponds to one standard deviation below the mean, which equals a score of 85 on a scale with mean 100 and SD 15.
An examinee performs Letter-Number Sequencing well but struggles on Digit Span Backward. This pattern most likely reflects:
Answer: A specific deficit in reversing sequence order compared to categorical sorting
Digit Span Backward requires mentally reversing a sequence without categorical cues, which some individuals find harder than the categorical sorting required in LNS.
Which of the following modifications is NOT a standardized accommodation for WAIS WMI subtests in examinees with hearing impairments?
Answer: Allowing unlimited time extensions
Allowing unlimited time extensions is not a standard accommodation; WMI subtests do not have strict time limits in the first place, and non-standardized changes invalidate norms.