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Journal of Educational…2
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Luo, Xiao1
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Automated Test Assembly with Mixed-Integer Programming: The Effects of Modeling Approaches and Solvers
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Luo, Xiao – Journal of Educational Measurement, 2020
Automated test assembly (ATA) is a modern approach to test assembly that applies advanced optimization algorithms on computers to build test forms automatically. ATA greatly improves the efficiency and accuracy of the test assembly. This study investigated the effects of the modeling methods and solvers in the mixed-integer programming (MIP)…
Descriptors: Test Construction, Automation, Programming, Models
Optimal Linking Design for Response Model Parameters
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Barrett, Michelle D.; van der Linden, Wim J. – Journal of Educational Measurement, 2017
Linking functions adjust for differences between identifiability restrictions used in different instances of the estimation of item response model parameters. These adjustments are necessary when results from those instances are to be compared. As linking functions are derived from estimated item response model parameters, parameter estimation…
Descriptors: Item Response Theory, Error of Measurement, Programming, Evaluation Methods