When 100% of the test-takers get an item correct, the item will have a
A)low difficulty index (0%).
B)high discriminability index.
C)discriminability index of approximately .5.
D)very low discriminability index.

Question

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The Answer of When 100% of the test-takers get an item correct, the item will have a
A)low difficulty index (0%).
B)high discriminability index.
C)discriminability index of approximately .5.
D)very low discriminability index.

When 100% of the Test-Takers Get an Item Correct, the Item