Wechsler Test Wechsler FSIQ and Index Score Interpretation 4

Question 1

An examinee shows VCI 115, VSI 112, FRI 118, WMI 113, but PSI 79. Which composite would best represent overall ability?

Accepted Answer

GAI, because it minimizes the depressed PSI

Answer

The GAI better captures intact reasoning ability when a low PSI drags down the FSIQ.

Question 2

What does a Cognitive Proficiency Index (CPI) combine?

Accepted Answer

Working Memory and Processing Speed

Answer

The CPI is formed from the Working Memory and Processing Speed indexes, reflecting efficiency of information processing.

Question 3

A confidence interval (e.g., 95%) is reported around a FSIQ to communicate:

Accepted Answer

The range likely containing the true score given measurement error

Answer

Confidence intervals express that the obtained score is an estimate subject to measurement error.

Question 4

Two subtests within an index differ by 5 scaled-score points. This intra-index scatter suggests the clinician should:

Accepted Answer

Interpret that index with caution

Answer

Significant subtest scatter within an index means the composite may not represent a single unitary ability.

Question 5

A FSIQ of 68 on the WAIS-IV would, with adaptive deficits, support consideration of which condition?

Accepted Answer

Intellectual disability

Answer

A FSIQ around 68 plus deficits in adaptive functioning is consistent with intellectual disability.

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