Wechsler Test Wechsler Working Memory Index 2 — Questions and Answers
Question 1: Which pair of core subtests forms the Working Memory Index (WMI) on the WAIS-IV?
- Digit Span and Arithmetic (Correct answer)
- Block Design and Matrix Reasoning
- Similarities and Vocabulary
- Coding and Symbol Search
Correct answer: Digit Span and Arithmetic
On the WAIS-IV, Digit Span and Arithmetic are the two core Working Memory subtests.
Question 2: On the WISC-V, which subtest replaced Arithmetic as a core Working Memory measure alongside Digit Span?
- Picture Span (Correct answer)
- Letter-Number Sequencing
- Cancellation
- Comprehension
Correct answer: Picture Span
The WISC-V uses Digit Span and Picture Span as its core Working Memory subtests.
Question 3: What is the mean standard score for the Working Memory Index on Wechsler scales?
- 50
- 85
- 100 (Correct answer)
- 120
Correct answer: 100
All Wechsler index scores have a mean of 100 and a standard deviation of 15.
Question 4: A person must repeat a string of digits in the exact same order presented. Which Digit Span condition is this?
- Digit Span Forward (Correct answer)
- Digit Span Backward
- Digit Span Sequencing
- Letter-Number Sequencing
Correct answer: Digit Span Forward
Digit Span Forward requires repeating digits in the same order, tapping short-term auditory memory.
Question 5: Which cognitive ability does the Working Memory Index primarily measure?
- The ability to hold and manipulate information in mind briefly (Correct answer)
- Long-term semantic knowledge
- Visual-motor speed
- Abstract visual reasoning
Correct answer: The ability to hold and manipulate information in mind briefly
The WMI reflects the capacity to temporarily store and mentally work with information.
Question 6: The standard deviation of the Wechsler Working Memory Index is:
- 3
- 10
- 15 (Correct answer)
- 20
Correct answer: 15
Wechsler index scores use a standard deviation of 15.
Question 7: Digit Span Backward primarily adds which demand compared to Digit Span Forward?
- Mental manipulation of the information (Correct answer)
- Faster presentation rate
- Visual scanning
- Motor coordination
Correct answer: Mental manipulation of the information
Reversing the digits requires manipulating the held information, not just storing it.
Wechsler Test Wechsler Working Memory Index 2
Which pair of core subtests forms the Working Memory Index (WMI) on the WAIS-IV?