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Item Sampling2
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Forsyth, Robert A.2
Scheetz, James P.2
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Assigning Items to Subtests in Multiple Matrix Sampling.
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Scheetz, James P.; Forsyth, Robert A. – 1977
The choice of design parameters (e.g., number of subtests, number of items per subtest, and number of examinees per subtest) can be controlled by the test constructor in a multiple matrix sampling evaluation. The purpose of this study was to determine empirically which combination of the above parameters produces the smallest standard errors of…
Descriptors: Error Patterns, Item Sampling
A Comparison of Simple Random Sampling Versus Stratification for Allocating Items to Subtests in Multiple Matrix Sampling.
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Scheetz, James P.; Forsyth, Robert A. – 1977
Empirical evidence is presented related to the effects of using a stratified sampling of items in multiple matrix sampling on the accuracy of estimates of the population mean. Data were obtained from a sample of 600 high school students for a 36-item mathematics test and a 40-item vocabulary test, both subtests of the Iowa Tests of Educational…
Descriptors: Achievement Tests, Difficulty Level, Item Analysis, Item Sampling