An Item Analysis Splits the "Upper" and "Lower" Groups into the Top

question 19

Multiple Choice

An item analysis splits the "Upper" and "Lower" groups into the top and bottom 50% of cases. Here are the item statistics for four items (21, 22, 23, and 24) .
Which item has the highest discrimination value?

• A) 21
• B) 22
• C) 23
• D) 24

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