The Effect of Item Parameter Drift on Examinee Ability Estimates¶
Wells, C. S., Subkoviak, M. J., & Serlin, R. C. (2002). The Effect of Item Parameter Drift on Examinee Ability Estimates. Applied Psychological Measurement, 26(1), 77-87.
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Primes¶
- Data Drift
- Carried into education, assessment items drift out of fit as cohorts change, and item-response monitoring, periodic re-calibration, and retiring drifted items are the educational analogue.
This sourceDocuments item parameter drift in item-response theory — assessment items lose fit over testing occasions/cohorts, biasing ability estimates and requiring recalibration or retiring drifted items.
- Carried into education, assessment items drift out of fit as cohorts change, and item-response monitoring, periodic re-calibration, and retiring drifted items are the educational analogue.
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