WAIS Working Memory Index (WMI) 3

Question 1

Research on the WAIS WMI consistently shows that working memory capacity is strongly related to which broader cognitive ability?

Accepted Answer

General intelligence (g)

Answer

Working memory is one of the strongest correlates of general intelligence, reflecting fluid reasoning and attentional control.

Question 2

An examinee with ADHD is most likely to show a characteristic pattern on the WAIS WMI of:

Accepted Answer

Depressed WMI relative to other index scores

Answer

ADHD is associated with deficits in attentional control and working memory, typically producing a lower WMI relative to other WAIS index scores.

Question 3

Which of the following best describes the role of the phonological loop during Digit Span Forward?

Accepted Answer

It rehearses auditory-verbal sequences to maintain them briefly

Answer

The phonological loop maintains verbal sequences through subvocal rehearsal, which is the primary mechanism in Digit Span Forward.

Question 4

In WAIS-IV standardization data, what is the approximate average raw Digit Span Forward score for adults aged 25–34?

Accepted Answer

6–7 digits

Answer

Normative data show most adults in this age range can correctly repeat sequences of approximately 6–7 digits forward.

Question 5

A low WMI score alongside an average Processing Speed Index (PSI) in a WAIS profile most strongly implicates difficulties in:

Accepted Answer

Active attentional control and mental manipulation

Answer

When PSI is intact but WMI is low, the deficit is specific to effortful working memory operations rather than general speed.

(WAIS) Wechsler Adult Intelligence Scale Practice Test