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Gressard, Risa P.; Loyd, Brenda H. – Journal of Experimental Education, 1991
To determine the accuracy of simulated data sets, an investigation was conducted of the effects of item sampling plans in the application of multiple matrix sampling using both simulated and empirical data sets. Although results were similar, empirical data results were more precise. (SLD)
Descriptors: Achievement Tests, Comparative Testing, English, Estimation (Mathematics)