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Multidimensional Item Response Theory And The Conceptual Survey Of Electricity And Magnetism, Cabot Zabriskie, John Stewart
Multidimensional Item Response Theory And The Conceptual Survey Of Electricity And Magnetism, Cabot Zabriskie, John Stewart
Faculty & Staff Scholarship
This paper is part of the Focused Collection on Quantitative Methods in PER: A Critical Examination.] While many studies have examined the structure, validity, and reliability of the Force Concept Inventory, far less research has been performed on other conceptual instruments in widespread use in physics education research. This study performs a confirmatory analysis of the Conceptual Survey of Electricity and Magnetism (CSEM) guided by a theoretical model of expert understanding of electricity and magnetism. Multidimensional Item Response Theory (MIRT) with the discrimination matrix constrained to the theoretical model was used to investigate two large datasets (N1=2014 and N2=2657) from …