Item parameter drift as an indication of differential opportunity to learn: An exploration of item flagging methods & accurate classification of examinees
The presence of outlying anchor items is an issue faced by many testing agencies. The decision to retain or remove an item is a difficult one, especially when the content representation of the anchor set becomes questionable by item removal decisions. Additionally, the reason for the aberrancy is no...
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| Language: | ENG |
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ScholarWorks@UMass Amherst
2010
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| Online Access: | https://scholarworks.umass.edu/dissertations/AAI3427607 |