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Kim, Sooyeon; Walker, Michael E. – Educational Testing Service, 2011
This study examines the use of subpopulation invariance indices to evaluate the appropriateness of using a multiple-choice (MC) item anchor in mixed-format tests, which include both MC and constructed-response (CR) items. Linking functions were derived in the nonequivalent groups with anchor test (NEAT) design using an MC-only anchor set for 4…
Descriptors: Test Format, Multiple Choice Tests, Test Items, Gender Differences
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Kim, Sooyeon; Walker, Michael E. – ETS Research Report Series, 2009
We examined the appropriateness of the anchor composition in a mixed-format test, which includes both multiple-choice (MC) and constructed-response (CR) items, using subpopulation invariance indices. We derived linking functions in the nonequivalent groups with anchor test (NEAT) design using two types of anchor sets: (a) MC only and (b) a mix of…
Descriptors: Test Format, Equated Scores, Test Items, Multiple Choice Tests