A Cautionary Note on Estimating the Reliability of a Mastery Test with the Beta-Binomial Model
1981
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A Cautionary Note on Estimating the Reliability of a Mastery Test with the Beta-Binomial Model
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1981
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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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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
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 Digital Conservancy, https://hdl.handle.net/11299/100425.
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