When an Item-Characteristic Curve of an Ability Test Has an Inverted

question 100

Multiple Choice

When an item-characteristic curve of an ability test has an inverted U shape,it usually indicates that

• A) testtakers of moderate ability have the highest probability of answering the item correctly.
• B) testtakers of low ability have the highest probability of answering the item correctly.
• C) testtakers of high ability have the highest probability of answering the item correctly.
• D) the item is working as well as any item on this test could be expected to work.

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