Question: It would be possible to construct a test characteristic curve that decreases as ability increases. To do so would require items with negative item discrimination

It would be possible to construct a test characteristic curve that decreases as ability increases. To do so would require items with negative item discrimination for the correct response to the items. Such a test would not be considered to be a good test because the higher an examinee’s ability level, the lower the score expected for the examinee.

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