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Download full textWalker, Michael E.; Kim, Sooyeon – Educational Testing Service, 2010
This study examined the use of an all multiple-choice (MC) anchor for linking mixed format tests containing both MC and constructed-response (CR) items, in a nonequivalent groups design. An MC-only anchor could effectively link two such test forms if either (a) the MC and CR portions of the test measured the same construct, so that the MC anchor…
Descriptors: Equated Scores, Test Format, Multiple Choice Tests, Statistical Analysis
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
