To know how well each preliminary test item contributes to accurate prediction of the criterion, we would use
A) item-difficulty index
B) item-reliability index
C) item-validity index
D) index of item discrimination

Question

Quizplus · Accepted Answer

Item-validity index is used to determine how well a test item predicts a criterion or outcome, indicating the relevance and effectiveness of the item in measuring what it is supposed to measure.

To Know How Well Each Preliminary Test Item Contributes to Accurate