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Discrimination power of an item is acceptable when its value ranges from?

A. A. 0.30 โ€“ 1
B. B. 1
C. C. 0.30
D. D. None
Correct Answer: A. A. 0.30 โ€“ 1

An item's discrimination power is acceptable when its value ranges from 0.30 to 1, effectively differentiating between high and low achievers.

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