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Direct linkBassiri, Dina; Schulz, E. Mathew – Journal of Applied Measurement, 2011
In this study, the Rasch rating scale model (Andrich, 1978) was applied to college grades of four freshman cohorts from a large public university. After editing, the data represented approximately 34,000 students, 1,700 courses and 119 departments. The rating scale model analysis yielded measures of student achievement and course difficulty.…
Descriptors: Grade Point Average, Courses, Difficulty Level, Academic Achievement
Peer reviewedLei, Pui-Wa; Bassiri, Dina; Schulz, E. Matthew – Journal of Applied Measurement, 2003
Compared the performance of four polytomous item response theory (IRT) and three linear models for constructing adjusted grade-point-average (GPA) measures. Studies involving cohorts of 1,255 and 1,796 college students and an additional 1,823 and 1,879 college students. Discusses implications of findings for correlation of grade-based measures and…
Descriptors: College Students, Computer Software, Correlation, Grade Point Average
