Abstract
The problem of detecting instructional sensitivity (“item basis”) in test items is considered. An illustration is given which shows that for tests with many biased items, traditional item bias detection schemes give a very poor assessment of bias. A new method is proposed instead. This method extends item response theory (IRT) by including item-specific auxiliary measurement information related to opportunity-to-learn. Item-specific variation in measurement relations across students with varying opportunity-to-learn is allowed for.
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Muthén, B.O. Using item-specific instructional information in achievement modeling. Psychometrika 54, 385–396 (1989). https://doi.org/10.1007/BF02294624
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DOI: https://doi.org/10.1007/BF02294624