Wechsler FSIQ and Index Score Interpretation Flashcards

Which WISC-V index was newly separated from Perceptual Reasoning to distinguish spatial from fluid abilities?

Answer: Visual Spatial Index

The WISC-V split the old Perceptual Reasoning Index into the Visual Spatial Index and Fluid Reasoning Index.

A FSIQ score of 100 corresponds to approximately which percentile rank?

Answer: 50th percentile

A FSIQ of 100 equals the mean, which is the 50th percentile.

The Fluid Reasoning Index (FRI) best measures which capacity?

Answer: Novel problem solving and inductive reasoning

Fluid reasoning involves detecting relationships and solving novel problems without relying on prior knowledge.

Approximately what FSIQ score marks the 98th percentile, the common threshold for gifted programs?

Answer: 130

A FSIQ near 130 falls at roughly the 98th percentile, often used as a giftedness cutoff.

Before interpreting the FSIQ, a clinician should first check whether the index scores are:

Answer: Unitary (not too discrepant from one another)

The FSIQ is most interpretable when the underlying indexes are reasonably consistent (unitary).

A Processing Speed Index of 70 places an examinee in which classification?

Answer: Borderline / Extremely Low boundary

A score of 70 sits at the boundary between Borderline and Extremely Low, two standard deviations below the mean.

Which pair of index scores would the GAI rely on most while minimizing the impact of speed-related deficits?

Answer: Verbal Comprehension and Visual Spatial/Fluid Reasoning

The GAI emphasizes verbal and reasoning abilities while excluding processing speed and working memory.