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Item Response Theory
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Which of the following is a key assumption of Item Response Theory?
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A
The probability of a person answering an item correctly is determined by their ability level and the difficulty of the item.
💡 Explanation:
IRT assumes that the probability of a person answering an item correctly is determined by their ability level and the difficulty of the item. This means that a person with a higher ability level is more likely to answer a difficult item correctly than a person with a lower ability level.