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Forsyth, Robert A.	1
Scheetz, James P.	1
Wilcox, Rand R.	1

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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

An Approach to Measuring the Achievement or Proficiency of an Examinee.

Wilcox, Rand R. – 1979

Mastery tests are analyzed in terms of the number of skills to be mastered and the number of items per skill, in order that correct decisions of mastery or nonmastery will be made to a desired degree of probability. It is assumed that a random sample of skills will be selected for measurement, that each skill will be measured by the same number of…

Descriptors: Achievement Tests, Cutting Scores, Decision Making, Equivalency Tests