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PERC 2019 Abstract Detail Page

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Abstract Title: Using Multidimensional Item Response Theory to Understand the FCI, the FMCE, and the CSEM
Abstract: Constrained Multidimensional Item Response Theory (MIRT) is a powerful tool to understand the detailed structure of a multiple-choice instrument. A detailed model of the conceptual solution of the instrument developed by experts in the field can be mapped onto the MIRT model and the degree to which the expert solution models student thinking can be evaluated. Small, theoretically motivated, changes to the model are then explored to find an optimal model of student thinking. This process was applied to the FCI, FMCE, and CSEM. The structure of each instrument was dramatically different. This analysis suggested that the FCI was largely one-dimensional, while the FMCE contained multiple sub-facets. The CSEM models for two institutions were compared showing that the optimal models selected by MIRT were very similar but not identical across institutions.
Abstract Type: Symposium Poster
Parallel Session: Learning by Analyzing More Than Just Correct Answers
Session Time: Parallel Sessions Cluster I
Room: Cascade C

Author/Organizer Information

Primary Contact: John Stewart
West Virginia University
and Co-Presenter(s)
Cabot Zabriskie, Jie Yang, Seth DeVore