WAIS - Wechsler Adult Intelligence Scale FSIQ and GAI Interpretation Questions and Answers

Question 1

An examiner notes the following WAIS-IV index scores for a client: Verbal Comprehension Index (VCI) = 118, Perceptual Reasoning Index (PRI) = 115, Working Memory Index (WMI) = 88, and Processing Speed Index (PSI) = 85.
When interpreting these results, which statement is most accurate?

Accepted Answer

The Full Scale IQ (FSIQ) is likely an underestimate of the client's general reasoning ability.

Answer

The General Ability Index (GAI) will be significantly lower than the Full Scale IQ (FSIQ).

Answer

The profile is consistent and unitary, making the FSIQ the only summary score needed for interpretation.

Answer

The client's performance suggests a primary weakness in verbal abstract reasoning.

Question 2

A psychologist calculates both the Full Scale IQ (FSIQ) and the General Ability Index (GAI) for an individual. The GAI is found to be significantly higher than the FSIQ. This pattern most strongly suggests that the individual's overall cognitive performance is being negatively impacted by relative weaknesses in which domains?

Accepted Answer

Cognitive efficiency, specifically working memory and processing speed.

Answer

Verbal comprehension and fluid reasoning.

Answer

Visual-spatial processing and perceptual organization.

Answer

Abstract reasoning and crystallized knowledge.

Question 3

Under which of the following circumstances is calculating and interpreting the General Ability Index (GAI) most warranted?

Accepted Answer

When there is a significant discrepancy between the VCI/PRI cluster and the WMI/PSI cluster.

Answer

When there is a large discrepancy between the Verbal Comprehension Index (VCI) and the Perceptual Reasoning Index (PRI).

Answer

When the examiner suspects the client did not put forth their best effort on the test.

Answer

When all four index scores (VCI, PRI, WMI, PSI) are within a few points of each other.

Question 4

The General Ability Index (GAI) is considered a measure of cognitive abilities that are less susceptible to certain influences compared to the FSIQ. For which of the following clinical populations might the GAI be a more representative estimate of underlying reasoning ability than the FSIQ?

Accepted Answer

Individuals with Attention-Deficit/Hyperactivity Disorder (ADHD).

Answer

Individuals with gifted intelligence and uniform cognitive profiles.

Answer

Individuals with specific phobias unrelated to test performance.

Answer

Individuals with a history of social anxiety but no cognitive complaints.

Question 5

Which of the following best describes the conceptual difference between the Full Scale IQ (FSIQ) and the General Ability Index (GAI)?

Accepted Answer

The FSIQ provides a broader summary of cognitive abilities, including cognitive efficiency, while the GAI focuses more narrowly on verbal and perceptual reasoning.

Answer

The FSIQ measures crystallized intelligence, while the GAI measures fluid intelligence.

Answer

The FSIQ is a measure of potential, while the GAI is a measure of current academic achievement.

Answer

The GAI is an outdated score, while the FSIQ is the modern standard for all interpretations.

Question 6

On the WAIS-IV, the General Ability Index (GAI) is derived from the core subtests of which two indices?

Accepted Answer

Verbal Comprehension Index and Perceptual Reasoning Index.

Answer

Working Memory Index and Processing Speed Index.

Answer

Perceptual Reasoning Index and Working Memory Index.

Answer

Verbal Comprehension Index and Processing Speed Index.

An examiner notes the following WAIS-IV index scores for a client: Verbal Comprehension Index (VCI) = 118, Perceptual Reasoning Index (PRI) = 115, Working Memory Index (WMI) = 88, and Processing Speed Index (PSI) = 85.When interpreting these results, which statement is most accurate?

An examiner notes the following WAIS-IV index scores for a client: Verbal Comprehension Index (VCI) = 118, Perceptual Reasoning Index (PRI) = 115, Working Memory Index (WMI) = 88, and Processing Speed Index (PSI) = 85.
When interpreting these results, which statement is most accurate?