Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment
written by
Lin Ding
The Brief Electricity and Magnetism Assessment (BEMA) is a 30-item multiple-choice test, designed to evaluate student understanding of basic electricity and magnetism (E&M) concepts at the introductory physics level. While previous studies have demonstrated its face and content validity, no efforts were made to evaluate the construct validity of this assessment. In the present study, we use Rasch modeling to explore whether or not the BEMA items can collectively measure the same ability (trait)-student basic understanding and application of E&M concepts. Results from item reliability, person reliability, person-item map, and item fit of Rasch modeling show that in general BEMA items, albeit covering a broad range of topics, form a unidimensional construct.
Physics Education Research Conference 2011
Part of the PER Conference series Omaha, Nebraska: August 3-4, 2011 Volume 1413, Pages 175-178
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![]() <a href="https://www.compadre.org/portal/items/detail.cfm?ID=11840">Ding, Lin. "Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment." Paper presented at the Physics Education Research Conference 2011, Omaha, Nebraska, August 3-4, 2011.</a>
![]() L. Ding, , presented at the Physics Education Research Conference 2011, Omaha, Nebraska, 2011, WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11840&DocID=2691).
![]() L. Ding, Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment, presented at the Physics Education Research Conference 2011, Omaha, Nebraska, 2011, <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11840&DocID=2691>.
![]() Ding, L. (2011, August 3-4). Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment. Paper presented at Physics Education Research Conference 2011, Omaha, Nebraska. Retrieved February 16, 2025, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11840&DocID=2691
![]() Ding, Lin. "Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment." Paper presented at the Physics Education Research Conference 2011, Omaha, Nebraska, August 3-4, 2011. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11840&DocID=2691 (accessed 16 February 2025).
![]() Ding, Lin. "Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment." Physics Education Research Conference 2011. Omaha, Nebraska: 2011. 175-178 Vol. 1413 of PER Conference. 16 Feb. 2025 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11840&DocID=2691>.
![]() @inproceedings{
Author = "Lin Ding",
Title = {Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment},
BookTitle = {Physics Education Research Conference 2011},
Pages = {175-178},
Address = {Omaha, Nebraska},
Series = {PER Conference},
Volume = {1413},
Month = {August 3-4},
Year = {2011}
}
![]() %A Lin Ding %T Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment %S PER Conference %V 1413 %D August 3-4 2011 %P 175-178 %C Omaha, Nebraska %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11840&DocID=2691 %O Physics Education Research Conference 2011 %O August 3-4 %O application/pdf ![]() %0 Conference Proceedings %A Ding, Lin %D August 3-4 2011 %T Applying Rasch theory to evaluate the construct validity of brief electricity and magnetism assessment %B Physics Education Research Conference 2011 %C Omaha, Nebraska %V 1413 %P 175-178 %S PER Conference %8 August 3-4 %U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=11840&DocID=2691 Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.
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