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written by Cabot Zabriskie and John Stewart
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 two research universities in the United States. The optimal model identified by MIRT was similar, but not identical, for the two datasets and had very good model fit with comparative fit indices of 0.975 and 0.984, respectively. The most parsimonious optimal model required 23 independent principles of electricity and magnetism and was significantly better fitting than a more general model dividing the CSEM into 6 general topics. The optimal models for the two samples were quite similar, sharing 22 of a possible 26 conceptual principles. Most of the overall item difficulties and discriminations were significantly different between the two samples; however, the rank order of the overall difficulty and discrimination were generally similar. There was much more similarity between the discrimination by item of the individual principles. Five items had a difficulty ranking that was substantially different between the two samples, indicating that while generally similar, relative difficulty does depend on the student population and instructional environment.
Physical Review Physics Education Research: Volume 15, Issue 2, Pages 020107
Subjects Levels Resource Types
Education - Basic Research
- Assessment
= Instruments
- Research Design & Methodology
= Statistics
= Validity
- Lower Undergraduate
- Reference Material
= Research study
PER-Central Type Intended Users Ratings
- PER Literature
- Researchers
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Format:
application/pdf
Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution 3.0 license.
Rights Holder:
American Physical Society
DOI:
10.1103/PhysRevPhysEducRes.15.020107
Record Creator:
Metadata instance created August 23, 2019 by Sam McKagan
Record Updated:
May 28, 2020 by Sam McKagan
Last Update
when Cataloged:
July 3, 2019
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AIP Format
C. Zabriskie and J. Stewart, Phys. Rev. Phys. Educ. Res. 15 (2), 020107 (2019), WWW Document, (http://dx.doi.org/10.1103/PhysRevPhysEducRes.15.020107).
AJP/PRST-PER
C. Zabriskie and J. Stewart, Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism, Phys. Rev. Phys. Educ. Res. 15 (2), 020107 (2019), <http://dx.doi.org/10.1103/PhysRevPhysEducRes.15.020107>.
APA Format
Zabriskie, C., & Stewart, J. (2019, July 3). Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism. Phys. Rev. Phys. Educ. Res., 15(2), 020107. Retrieved July 10, 2020, from http://dx.doi.org/10.1103/PhysRevPhysEducRes.15.020107
Chicago Format
Zabriskie, Cabot, and John Stewart. "Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism." Phys. Rev. Phys. Educ. Res. 15, no. 2, (July 3, 2019): 020107, http://dx.doi.org/10.1103/PhysRevPhysEducRes.15.020107 (accessed 10 July 2020).
MLA Format
Zabriskie, Cabot, and John Stewart. "Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism." Phys. Rev. Phys. Educ. Res. 15.2 (2019): 020107. 10 July 2020 <http://dx.doi.org/10.1103/PhysRevPhysEducRes.15.020107>.
BibTeX Export Format
@article{ Author = "Cabot Zabriskie and John Stewart", Title = {Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism}, Journal = {Phys. Rev. Phys. Educ. Res.}, Volume = {15}, Number = {2}, Pages = {020107}, Month = {July}, Year = {2019} }
Refer Export Format

%A Cabot Zabriskie
%A John Stewart
%T Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism
%J Phys. Rev. Phys. Educ. Res.
%V 15
%N 2
%D July 3, 2019
%P 020107
%U http://dx.doi.org/10.1103/PhysRevPhysEducRes.15.020107
%O application/pdf

EndNote Export Format

%0 Journal Article
%A Zabriskie, Cabot
%A Stewart, John
%D July 3, 2019
%T Multidimensional Item Response Theory and the Conceptual Survey of Electricity and Magnetism
%J Phys. Rev. Phys. Educ. Res.
%V 15
%N 2
%P 020107
%8 July 3, 2019
%U http://dx.doi.org/10.1103/PhysRevPhysEducRes.15.020107


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