Index to Chiropractic Literature
Index to Chiropractic Literature
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Friday, March 29, 2024
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ID 26072
  Title A primer on standardized testing: History, measurement, classical test theory, item response theory, and equating
URL https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6759012/
Journal J Chiropr Educ. 2019 October;33(2):151-163
Author(s)
Subject(s)
Peer Review Yes
Publication Type Article
Abstract/Notes

Objective: This article presents health science educators and researchers with an overview of standardized testing in educational measurement. The history, theoretical frameworks of classical test theory, item response theory (IRT), and the most common IRT models used in modern testing are presented.

Methods: A narrative overview of the history, theoretical concepts, test theory, and IRT is provided to familiarize the reader with these concepts of modern testing. Examples of data analyses using different models are shown using 2 simulated data sets. One set consisted of a sample of 2000 item responses to 40 multiple-choice, dichotomously scored items. This set was used to fit 1-parameter logistic (PL) model, 2PL, and 3PL IRT models. Another data set was a sample of 1500 item responses to 10 polytomously scored items. The second data set was used to fit a graded response model.

Results: Model-based item parameter estimates for 1PL, 2PL, 3PL, and graded response are presented, evaluated, and explained.

Conclusion: This study provides health science educators and education researchers with an introduction to educational measurement. The history of standardized testing, the frameworks of classical test theory and IRT, and the logic of scaling and equating are presented. This introductory article will aid readers in understanding these concepts.

Author keywords: Chiropractic, Education, Educational Measurement

Author affiliation: National Board of Chiropractic Examiners, Greeley, Colorado, United States

This abstract is reproduced with the permission of the pubisher. Click on the above link for free full text. PubMed Record


 

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