Wide Range Achievement Test Wide Range Achievement Psychometric Properties 4

Question 1

Discriminant validity for the WRAT-5 is best supported by which finding?

Accepted Answer

WRAT-5 subtests correlate more strongly with each other than with unrelated constructs like processing speed

Answer

Discriminant validity is supported when WRAT-5 subtests show lower correlations with theoretically unrelated constructs (e.g., processing speed) than with each other.

Question 2

Which WRAT-5 psychometric property is primarily evaluated by examining whether the test measures the same construct equally well across different demographic groups?

Accepted Answer

Measurement invariance / differential item functioning

Answer

Measurement invariance and differential item functioning (DIF) analyses evaluate whether WRAT-5 items function equivalently across demographic groups such as race, sex, or language background.

Question 3

When interpreting WRAT-5 scores for a bilingual student, which psychometric concern is most critical?

Accepted Answer

Norm sample representativeness for bilingual populations

Answer

For bilingual students, the representativeness of the norm sample for that population is most critical, as norms based primarily on monolingual examinees may not generalize.

Question 4

Which WRAT-5 psychometric feature specifically addresses the practical concern of how much a score must change between administrations to reflect true ability change rather than measurement error?

Accepted Answer

Reliable change index (RCI)

Answer

The reliable change index (RCI) specifies the score change required to exceed measurement error and conclude that a real change in ability has occurred.

Question 5

The WRAT-5 Sentence Comprehension subtest's validity evidence includes correlations with which criterion variable that directly supports its intended construct?

Accepted Answer

Reading comprehension measures from other standardized tests

Answer

Sentence Comprehension validity is supported by substantial correlations with reading comprehension measures from other standardized tests, confirming the subtest measures its intended construct.

Wide Range Achievement Test Practice Test

Wide Range Achievement Test Practice Test

Wide Range Achievement Test Wide Range Achievement Psychometric Properties 4