Practice Test Geeks(WAIS) Wechsler Adult Intelligence Scale Practice Test
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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

  1. Which WAIS-IV subtest requires the examinee to listen to a sequence of letters and numbers, then recall the numbers in ascending order followed by the letters in alphabetical order?

    Answer: Letter-Number Sequencing

    Letter-Number Sequencing requires mental reordering of a mixed sequence, making it a core WMI subtest.

  2. On the WAIS-IV Digit Span subtest, which condition is considered the most sensitive measure of working memory manipulation?

    Answer: Digit Span Sequencing

    Digit Span Sequencing requires the examinee to reorder digits from lowest to highest, demanding active mental manipulation rather than simple repetition.

  3. A clinician notes that an examinee scores significantly higher on Digit Span Forward than Digit Span Backward. What does this discrepancy most likely indicate?

    Answer: Difficulty with active mental manipulation

    A large forward-backward discrepancy suggests the examinee can passively hold information but struggles to actively manipulate it in working memory.

  4. Which component of Baddeley's working memory model is most directly engaged during the WAIS Arithmetic subtest?

    Answer: Central executive

    The central executive coordinates attention and manipulates information, which is central to solving mental arithmetic problems without paper.

  5. The WAIS-IV Arithmetic subtest is classified as a supplemental WMI subtest primarily because:

    Answer: It also loads on verbal comprehension and numerical ability

    Arithmetic taps working memory but is heavily influenced by crystallized numerical knowledge, making it a supplemental rather than core WMI measure.

  6. Which standard score metric is used to express the WAIS-IV Working Memory Index?

    Answer: Composite standard score (mean=100, SD=15)

    WAIS-IV index scores, including the WMI, are reported as composite standard scores with a mean of 100 and SD of 15.

  7. When computing the WMI from WAIS-IV core subtests, which two subtests are combined?

    Answer: Digit Span and Letter-Number Sequencing

    The WMI is derived from Digit Span and Letter-Number Sequencing as its two core subtests.