2019
DOI: 10.1002/ets2.12239
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Applying Multiphase Sampling to Selecting Testlets With Constraints on Item Blocks

Abstract: In assembling testlets (i.e., test forms) with a pool of new and used item blocks, test security is one of the main issues of concern. Strict constraints are often imposed on repeated usage of the same item blocks. Nevertheless, for an assessment administering multiple testlets, a goal is to select as large a sample of testlets as possible. In this study, the algorithm of multiphase sampling was applied to selecting and augmenting the sample of testlets to be administered. Several topics related to the algorit… Show more

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