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Home > Measurement Evaluation Assessment > Question

A negative value for the Item Discrimination Index (D) suggests that the test item:

0
A) Is flawed and should be revised or discarded
B) Is too difficult
C) Has a high reliability
D) Is too easy

Correct Answer: A) Is flawed and should be revised or discarded

A negative D means that low-achievers are answering the item correctly more often than high-achievers, indicating a serious flaw like ambiguity or a trick question.

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