Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"item exposure"”.
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Does Item Exposure Impact the Relationship Between Specificity and Interrater Agreement
… discussion. Their results indicated that as item specificity decreased (i.e., as items became more vague), there was an increase in interrater agreement, a positive correlation between item difficulty and interater agreement, and a positive correlation between performance and interrater …
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Controlling item exposure for response time-informed item selection in computerized adaptive testing
… (MIC) by the expected response time for each item effectively reduced the average completion time for a test of fixed length while maintaining efficiency of ability estimation. However, this also resulted in an extremely skewed distribution of item exposure rates. To counter this issue, they …
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THE IMPACT OF ANCHOR ITEM EXPOSURE ON MEAN/SIGMA LINKING AND IRT TRUE SCORE EQUATING UNDER THE NEAT DESIGN
… one year apart. The two forms have a set of items in common, usually called the anchor set, in order to control for differences in examinee ability. The anchor set can be treated as internal or external according to whether or not examinees' responses contribute to their total score. However, …
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Some practical item selection algorithms in cognitive diagnostic computerized adaptive testing -- smart diagnosis for smart learning
… issues in CD-CAT: measurement efficiency and item exposure control. The posterior-weighted CDM discrimination index (PWCDI) and posterior-weighted attribute-level CDM discrimination index (PWACDI) are computationally affordable and highly efficient alternatives to other information index-based …
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The effectiveness of using multiple item pools to increase test security in computerized adaptive testing
… to investigate the effectiveness of a multiple item pool design verse the commonly used single pool design in terms of measurement precision, item exposure control and item pool usage balance for Computerized Adaptive Testing (CAT). Also, the extent to that multiple item pools can reduce the …
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Advancements in test security: preventive test assembly methods and change-point detection of compromised items in adaptive testing
… in detail, then the vital security concerns of item exposure and test overlap are given a rigorous theoretical treatment. Ultimately, the asymptotic distribution of mean test overlap rate under random item selection is proven. Chapter 2: The assembly of linear test forms has traditionally been …
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Statistical issues and developments in time series analysis and educational measurement
… complete linkage for data from unidimensional item response models, restricted latent class models for cognitive diagnosis, and the linear factor analysis model. An aim is to identify distance measures that work well for a variety of models, explore how much knowledge of the underlying model is …
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Effective cognitive diagnostic assessment with computerized adaptive testing
… ability, that is, each examinee will receive items that are neither too easy nor too difficult. Consequently, CAT is a more efficient test mode compared to paper-and-pencil testing. With the advancement of technology, CAT became a viable option for test administration. The advantages that CAT …