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What is the difference between item discrimination and item difficulty? In what ways are these measures valuable in the evaluation of a test? Why?

What is the difference between item discrimination and item difficulty? In what ways are these measures valuable in the evaluation of a test? Why?

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Item discrimination refers to the degree to which the top performing students in a particular class were able to get a... View the full answer

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Item discrimination: Is an index of how well an item differentiates between individuals who were able to do... View the full answer

There are two most common statistics reported during the analysis of the item and these are item discrimination and item... View the full answer

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