When analyzing test results, what does a high discrimination index indicate about a test item?

When analyzing test results, what does a

Multiple choice — select the best answer

AThe item needs to be rewritten for clarity
BThe item is measuring multiple concepts simultaneously
CThe item effectively distinguishes between high and low-performing students
DThe item is too difficult for most students

✓ Correct answer: C. The item effectively distinguishes between high and low-performing students A high discrimination index indicates the item effectively distinguishes between high and low-performing students, which is desirable in assessment as it helps identify those who have mastered the content.

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