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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| Format: | Others |
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ScholarWorks@UMass Amherst
2010
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| Online Access: | https://scholarworks.umass.edu/open_access_dissertations/301 https://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1309&context=open_access_dissertations |