WAIS Working Memory Index (WMI) 2

Question 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?

Accepted Answer

Letter-Number Sequencing

Answer

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

Question 2

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

Accepted Answer

Digit Span Sequencing

Answer

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

Question 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?

Accepted Answer

Difficulty with active mental manipulation

Answer

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

Question 4

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

Accepted Answer

Central executive

Answer

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

Question 5

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

Accepted Answer

It also loads on verbal comprehension and numerical ability

Answer

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

(WAIS) Wechsler Adult Intelligence Scale Practice Test

(WAIS) Wechsler Adult Intelligence Scale Practice Test

WAIS Working Memory Index (WMI) 2