The effects of controlling for distributional differences on the Mantel-Haenszel procedure Public Deposited

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Last Modified
  • March 22, 2019
Creator
  • Bowen, Daniel F.
    • Affiliation: School of Education
Abstract
  • Propensity score matching was used to control for the distributional differences in ability between two simulated data sets. One data set represented English speaking examinees and the second data set represented Spanish speaking examinees who received the Spanish language version of the same test. The ability distributions of the two populations were set to mirror the data from a large-scale statewide assessment delivered in both English and Spanish. The simulated data were used as a benchmark to compare the Mantel-Haenszel procedure for identifying differential item function (DIF) under the two scenarios with the hope that controlling for distributional differences would reduce the errors made by the Mantel-Haenszel procedure in identifying DIF. With the increase in high-stakes testing of diverse populations in the United States as well as elsewhere in the world, it is critical that effective methods of identifying DIF be developed for situations where the reference and focal groups display distributional differences. However, the evidence of this study suggests that the matched samples did not help the Mantel-Haenszel procedure identify DIF, and in fact increased its errors.
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  • In Copyright
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  • "... in partial fulfillment of the requirements for the degree of Master of Arts in the School of Education."
Advisor
  • Cizek, Gregory J.
Degree granting institution
  • University of North Carolina at Chapel Hill
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Place of publication
  • Chapel Hill, NC
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  • Open access
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