WAIS Psychometric Properties and Norms 2

Question 1

The WAIS-IV standardization sample was stratified by which demographic variables?

Accepted Answer

Age, sex, race/ethnicity, and education level

Answer

The WAIS-IV normative sample was stratified by age, sex, race/ethnicity, and education level to mirror U.S. Census proportions.

Question 2

What is the test-retest reliability coefficient range typically reported for WAIS-IV composite scores?

Accepted Answer

.90 to .96

Answer

WAIS-IV composite scores show high test-retest reliability, with coefficients generally ranging from .90 to .96.

Question 3

Which WAIS-IV index shows the lowest average internal consistency reliability among the four index scores?

Accepted Answer

Processing Speed Index

Answer

The Processing Speed Index typically shows somewhat lower internal consistency than other indexes because its subtests are timed performance tasks.

Question 4

A score of 115 on the WAIS-IV FSIQ falls at approximately which percentile rank?

Accepted Answer

84th percentile

Answer

An FSIQ of 115 is one standard deviation above the mean, corresponding to the 84th percentile.

Question 5

What is the primary purpose of age-corrected scaled scores on the WAIS-IV?

Accepted Answer

To compare an individual's performance to same-age peers

Answer

Age-corrected scaled scores allow comparison of an individual's subtest performance relative to peers in the same age group.

(WAIS) Wechsler Adult Intelligence Scale Practice Test