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A Cautionary Note on Estimating the Reliability of a Mastery Test with the Beta-Binomial Model
Wilcox, Rand R. (1981)
 

Title 
A Cautionary Note on Estimating the Reliability of a Mastery Test with the Beta-Binomial Model

Author(s)

Issue Date
1981

Type
Article

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.

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Other Identifier(s)
other: doi:10.1177/014662168100500411

Suggested Citation
Wilcox, Rand R.. (1981). A Cautionary Note on Estimating the Reliability of a Mastery Test with the Beta-Binomial Model. Retrieved from the University of Minnesota Digital Conservancy, http://purl.umn.edu/100425.


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