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Journal of Educational…1
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Lewis, Charles2
Livingston, Samuel A.2
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Estimating the Consistency and Accuracy of Classifications Based on Test Scores.
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Livingston, Samuel A.; Lewis, Charles – Journal of Educational Measurement, 1995
A method is presented for estimating the accuracy and consistency of classifications based on test scores. The reliability of the score is used to estimate effective test length in terms of discrete items. The true-score distribution is estimated by fitting a four-parameter beta model. (SLD)
Descriptors: Classification, Estimation (Mathematics), Scores, Statistical Distributions
Estimating the Consistency and Accuracy of Classifications Based on Test Scores.
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Livingston, Samuel A.; Lewis, Charles – 1993
This paper presents a method for estimating the accuracy and consistency of classifications based on test scores. The scores can be produced by any scoring method, including the formation of a weighted composite. The estimates use data from a single form. The reliability of the score is used to estimate its effective test length in terms of…
Descriptors: Classification, Error of Measurement, Estimation (Mathematics), Reliability