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van der Linden, Wim J. – Journal of Educational Measurement, 2005
In test assembly, a fundamental difference exists between algorithms that select a test sequentially or simultaneously. Sequential assembly allows us to optimize an objective function at the examinee's ability estimate, such as the test information function in computerized adaptive testing. But it leads to the non-trivial problem of how to realize…
Descriptors: Law Schools, Item Analysis, Admission (School), Adaptive Testing
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Wang, Tianyou; Kolen, Michael J. – Journal of Educational Measurement, 2001
Reviews research literature on comparability issues in computerized adaptive testing (CAT) and synthesizes issues specific to comparability and test security. Develops a framework for evaluating comparability that contains three categories of criteria: (1) validity; (2) psychometric property/reliability; and (3) statistical assumption/test…
Descriptors: Adaptive Testing, Comparative Analysis, Computer Assisted Testing, Criteria