A Simple Distribution for the Sum of Correlated, Exchangeable Binary Data

Gary Witt

Communications in Statistics - Theory and Methods, 2014, vol. 43, issue 20, 4265-4280

Abstract: This article describes a generalization of the binomial distribution. The closed form probability function for the probability of k successes out of n correlated, exchangeable Bernoulli trials depends on the number of trials and its two parameters: the common success probability and the common correlation. The distribution is derived under the assumption that the common correlation between all pairs of Bernoulli trials remains unchanged conditional on successes in all completed trials. The distribution was developed to model bond defaults but may be suited to biostatistical applications involving clusters of binary data encountered in repeated measurements or toxicity studies of families of organisms. Maximum likelihood estimates for the parameters of the distribution are found for a set of binary data from a developmental toxicity study on litters of mice.

Date: 2014
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Citations: View citations in EconPapers (6)

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DOI: 10.1080/03610926.2012.725148

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