The ideal difficulty for an item in a standardized, norm-referenced multiple-choice test that has four alternatives with 15 in the high group and 15 in the low group would range between
A) 0 and 25%
B) 30% and 40%
C) 60% and 65%
D) 80% and 100%

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The Answer of The ideal difficulty for an item in a standardized, norm-referenced multiple-choice test that has four alternatives with 15 in the high group and 15 in the low group would range between
A) 0 and 25%
B) 30% and 40%
C) 60% and 65%
D) 80% and 100%

The Ideal Difficulty for an Item in a Standardized, Norm-Referenced