In test development, differential item functioning refers to the tendency for
A) some test items to relate more closely with the total test score than other items.
B) individual scorer bias to affect how test items are scored.
C) individuals of equal ability but from different subgroups not to have the same probability of earning a given score.
D) individuals to score differently on each administration of the test.

Question

Quizplus · Accepted Answer

Differential item functioning occurs when individuals of equal ability but from different subgroups (e.g., gender, ethnicity) do not have the same probability of answering a test item correctly, indicating a potential bias in the item.

In Test Development, Differential Item Functioning Refers to the Tendency