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Please use this identifier to cite or link to this item: http://hdl.handle.net/11299/100425

Title: A Cautionary Note on Estimating the Reliability of a Mastery Test with the Beta-Binomial Model
Authors: Wilcox, Rand R.
Issue Date: 1981
Citation: Wilcox, Rand R. (1981). A Cautionary Note on Estimating the Reliability of a Mastery Test with the Beta-Binomial Model. Applied Psychological Measurement, 5, 531-537. doi:10.1177/014662168100500411
Abstract: Based on recently published papers, it might be tempting to routinely apply the beta-binomial model to obtain a single administration estimate of the reliability of a mastery test. Using real data, the paper illustrates two practical problems with estimating reliability in this manner. The first is that the model might give a poor fit to data, which can seriously affect the reliability estimate, and the second is that inadmissible estimates of the parameters in the beta-binomial model might be obtained. Two possible solutions are described and illustrated.
URI: http://purl.umn.edu/100425
Appears in Collections:Volume 05, 1981

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