The Effects of a Student Sampling Plan on Estimates of the Standard Errors for Student Passing Rates |
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| Authors: | Guemin Lee Anne R Fitzpatrick |
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| Affiliation: | Assistant professor in the Department of Education, Keimyung University, Korea;. His research interests include educational measurement and statistics.;Senior research scientist at Educational Testing Service, 80 Garden Court Suite 202, Monterey, CA 93940, . Her research interests include psychometrics, scaling, and equating. |
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| Abstract: | Examined in this study were three procedures for estimating the standard errors of school passing rates using a generalizability theory model. Also examined was how these procedures behaved for student samples that differed in size. The procedures differed in terms of their assumptions about the populations from which students were sampled, and it was found that student sample size generally had a notable effect on the size of the standard error estimates they produced. Also the three procedures produced markedly different standard error estimates when student sample size was small. |
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