“A test item in an examination of mental attributes is a unit of measurement with a stimulus and a prescriptive form for answering; and, it is intended to yield a response from an examinee from which performance in some psychological construct (such as ability, predisposition, or trait) may be inferred.”
Osterlind 1990, p. 3
The definition of a test item itself is complex, but it does contain a number of clear parts – stimulus material and a form for answering. Usually, the stimulus material asks a specific question and the form for answering yields a response. For most tests of achievement, aptitude, or other cognitive characteristics, the test item has a correct answer and the response is scored to give an item score.
KeywordsCorrect Response Correct Answer Test Item Item Response Item Response Theory
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