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Direct linkSchurmeier, Kimberly D.; Atwood, Charles H.; Shepler, Carrie G.; Lautenschlager, Gary J. – Journal of Chemical Education, 2010
Five years of longitudinal data for general chemistry student assessments at the University of Georgia have been analyzed using item response theory (IRT). Our analysis indicates that minor changes in question wording on exams can make significant differences in student performance on assessment questions. This analysis encompasses data from over…
Descriptors: Academic Achievement, Item Response Theory, Universities, Chemistry
