If all the items on a test have high discrimination indexes, the test of necessity has a high
A) concurrent validity.
B) internal consistency.
C) level of difficulty.
D) predictive validity.

Question

Quizplus · Accepted Answer

High discrimination indexes in test items indicate that the items effectively differentiate between high and low scorers, which contributes to the internal consistency of the test. Internal consistency is a measure of how well the items on a test measure the same construct or concept.

If All the Items on a Test Have High Discrimination