WPPSI - Wechsler Preschool and Primary Scale of Intelligence Subtest Substitution Guidelines Questions and Answers

Question 1

When calculating the Full Scale IQ (FSIQ) for a 6-year-old child using the WPPSI-IV, what is the maximum number of core subtest substitutions permitted?

Accepted Answer

Two

Answer

One

Answer

Three

Answer

Zero; substitutions are not allowed for the FSIQ.

Question 2

An examiner is assessing a 5-year-old child. During the administration of the Information subtest, a significant interruption invalidates the results. To derive the Verbal Comprehension Index (VCI), which of the following is the appropriate designated substitute subtest?

Accepted Answer

Vocabulary

Answer

Picture Naming

Answer

Receptive Vocabulary

Answer

Similarities

Question 3

An examiner invalidates the Bug Search subtest for a 7-year-old and substitutes it with Cancellation to derive the Processing Speed Index (PSI). Later, the Animal Coding subtest is also spoiled. Why is the examiner prohibited from substituting another subtest for Animal Coding to calculate the PSI?

Accepted Answer

Only one substitution is permitted per index score.

Answer

Cancellation can only be used to substitute for Bug Search.

Answer

The PSI cannot be prorated under any circumstances.

Answer

No other supplemental subtests exist for the PSI.

Question 4

According to standard WPPSI-IV guidelines, which of the following is NOT considered a valid reason to substitute a core subtest?

Accepted Answer

The examiner believes the supplemental subtest better reflects the child's ability.

Answer

The child has a physical impairment, such as a motor deficit, that hinders performance on the core subtest.

Answer

The administration of the core subtest was spoiled by an external event like a fire drill.

Answer

The child has a significant language impairment that makes the core subtest an invalid measure.

Question 5

A key difference in the FSIQ substitution rules between the two WPPSI-IV age bands is the total number of substitutions allowed. For a child in the younger age band (2:6-3:11), what is the maximum number of substitutions permitted to calculate the FSIQ?

Accepted Answer

One

Answer

Two

Answer

Zero

Answer

The same as the older age band.

Question 6

A 4-year-old child is administered the WPPSI-IV. The examiner invalidates the Matrix Reasoning subtest. Which of the following is the correct procedure regarding substitution for the Fluid Reasoning Index (FRI)?

Accepted Answer

No substitution is possible; the FRI cannot be calculated.

Answer

Substitute with the Object Assembly subtest.

Answer

Substitute with the Vocabulary subtest.

Answer

Substitute with the Picture Concepts subtest.