Results 241 to 250 of about 15,347,884 (286)

Estimation of Parameters in the Beta Binomial Model [PDF]

open access: yesAnnals of the Institute of Statistical Mathematics, 1994
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ramesh C Gupta   +2 more
exaly   +3 more sources

A Simple Approach to Fit the Beta-Binomial Model [PDF]

open access: yesThe Stata Journal, 2005
In this paper, I show how to estimate the parameters of the beta-binomial distribution and its multivariate generalization, the Dirichlet-multinomial distribution. This approach involves no additional programming, as it relies on an existing Stata command used for overdispersed count panel data. Including covariates to allow for regression models based
Paulo Guimarães
exaly   +3 more sources

Rare Events Meta-Analysis Using the Bayesian Beta-Binomial Model

open access: yesResearch Synthesis Methods, 2023
AbstractIn meta‐analyses of rare events, it can be challenging to obtain a reliable estimate of the pooled effect, in particular when the meta‐analysis is based on a small number of studies. Recent simulation studies have shown that the beta‐binomial model is a promising candidate in this situation, but have thus far only investigated its performance ...
Heinz Holling, Katrin Jansen
exaly   +3 more sources

Misspecification tests for binomial and beta‐binomial models

Statistics in Medicine, 2007
AbstractThe IOS test of Presnell and Boss (J. Am. Stat. Assoc. 2004; 99(465):216–227) is a general‐purpose goodness‐of‐fit test based on the ratio of in‐sample and out‐of‐sample likelihoods. For large samples, the IOS statistic can be approximated by a multiplicative contrast between two estimates of the information matrix, and in this way the IOS test
Marinela, Capanu, Brett, Presnell
openaire   +2 more sources

A BETA‐BINOMIAL MODEL FOR LIBRARY SURVEY DATA

Journal of Documentation, 1987
It has become of increasing importance to the UK library community to estimate the proportion of library acquisitions in the United Kingdom for which a UK MARC record is available at the time of cataloguing. This proportion is called the hit rate. The libraries have for the purpose of the study been divided into two sectors, academic libraries and ...
Bernard W. Silverman, J. D. Wilson
openaire   +2 more sources

On a Likelihood-Based Goodness-of-Fit Test of the Beta-Binomial Model

Biometrics, 2000
Summary.When faced with proportion data that exhibit extra‐binomial variation, data analysts often consider the beta‐binomial distribution as an alternative model to the more common binomial distribution. A typical example occurs in toxicological experiments with laboratory animals, where binary observations on fetuses within a litter are often ...
Richard L Smith, Walter W. Piegorsch
exaly   +3 more sources

Stationarity test for the beta binomial model

Journal of Business Research, 1981
Abstract The beta binomial model has been successfully applied to describe brand switching, television viewing, and magazine readership behavior. However, long-term projections from this model tend to have systematic biases. These biases can be explained by violations of the stationarity assumption of the model. A statistical test for stationarity is
Darius J. Sabavala, Donald G. Morrison
openaire   +1 more source

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