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Exploring the CLASS with Item Response Theory
written by Elaine Christman, Paul M. Miller, and John Stewart
This work applied exploratory factor analysis (EFA) and graded Item Response Theory (IRT) to a large sample (N = 4522) of Colorado Learning Attitudes about Science Survey (CLASS) post-test scores. EFA failed to reproduce the factor structure suggested by the authors of the CLASS and strongly supported the alternate 3-factor model suggested by Douglas et al. Graded IRT allowed an examination of the progression from nonexpert-like to expert-like beliefs. This progression was generally uniform with a linear relation between the difficulty of each step in the progression. Some items within the factors identified by Douglas et al. had difficulty and discrimination parameters substantially different from other items in the factor suggesting the subscale is not unidimensional. The expert-like latent ability trait estimated by IRT correlated more strongly with measures of physics performance than measures of general academic performance indicating that expert-like beliefs are not a general property of high performing students.
Physics Education Research Conference 2020
Part of the PER Conference series
Virtual Conference: July 22-23, 2020
Pages 81-86
Subjects Levels Resource Types
Education - Basic Research
- Assessment
= Instruments
- Research Design & Methodology
= Statistics
= Validity
- Student Characteristics
= Affect
- Lower Undergraduate
- Reference Material
= Research study
PER-Central Type Intended Users Ratings
- PER Literature
- Researchers
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Format:
application/pdf
Mirror:
https://doi.org/10.1119/perc.2020…
Access Rights:
Free access
License:
This material is released under a Creative Commons Attribution 4.0 license. Further distribution of this work must maintain attribution to the published article's author(s), title, proceedings citation, and DOI.
Rights Holder:
American Association of Physics Teachers
DOI:
10.1119/perc.2020.pr.Christman
NSF Numbers:
1003907
1561517
Keyword:
PERC 2020
Record Creator:
Metadata instance created August 27, 2020 by Lyle Barbato
Record Updated:
August 28, 2020 by Lyle Barbato
Last Update
when Cataloged:
September 1, 2020
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Record Link
AIP Format
E. Christman, P. Miller, and J. Stewart, presented at the Physics Education Research Conference 2020, Virtual Conference, 2020, WWW Document, (https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15463&DocID=5311).
AJP/PRST-PER
E. Christman, P. Miller, and J. Stewart, Exploring the CLASS with Item Response Theory, presented at the Physics Education Research Conference 2020, Virtual Conference, 2020, <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15463&DocID=5311>.
APA Format
Christman, E., Miller, P., & Stewart, J. (2020, July 22-23). Exploring the CLASS with Item Response Theory. Paper presented at Physics Education Research Conference 2020, Virtual Conference. Retrieved October 29, 2020, from https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15463&DocID=5311
Chicago Format
Christman, E, P. Miller, and J. Stewart. "Exploring the CLASS with Item Response Theory." Paper presented at the Physics Education Research Conference 2020, Virtual Conference, July 22-23, 2020. https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15463&DocID=5311 (accessed 29 October 2020).
MLA Format
Christman, Elaine, Paul Miller, and John Stewart. "Exploring the CLASS with Item Response Theory." Physics Education Research Conference 2020. Virtual Conference: 2020. 81-86 of PER Conference. 29 Oct. 2020 <https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15463&DocID=5311>.
BibTeX Export Format
@inproceedings{ Author = "Elaine Christman and Paul Miller and John Stewart", Title = {Exploring the CLASS with Item Response Theory}, BookTitle = {Physics Education Research Conference 2020}, Pages = {81-86}, Address = {Virtual Conference}, Series = {PER Conference}, Month = {July 22-23}, Year = {2020} }
Refer Export Format

%A Elaine Christman
%A Paul Miller
%A John Stewart
%T Exploring the CLASS with Item Response Theory
%S PER Conference
%D July 22-23 2020
%P 81-86
%C Virtual Conference
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15463&DocID=5311
%O Physics Education Research Conference 2020
%O July 22-23
%O application/pdf

EndNote Export Format

%0 Conference Proceedings
%A Christman, Elaine
%A Miller, Paul
%A Stewart, John
%D July 22-23 2020
%T Exploring the CLASS with Item Response Theory
%B Physics Education Research Conference 2020
%C Virtual Conference
%P 81-86
%S PER Conference
%8 July 22-23
%U https://www.compadre.org/Repository/document/ServeFile.cfm?ID=15463&DocID=5311


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The AIP Style presented is based on information from the AIP Style Manual.

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