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Median Unbiased Estimation for Binary Data

 

作者: KarimF. Hirji,   AnastasiosA. Tsiatis,   CyrusR. Mehta,  

 

期刊: The American Statistician  (Taylor Available online 1989)
卷期: Volume 43, issue 1  

页码: 7-11

 

ISSN:0003-1305

 

年代: 1989

 

DOI:10.1080/00031305.1989.10475597

 

出版商: Taylor & Francis Group

 

关键词: Accuracy of an estimator;Maximum likelihood estimator;Sufficient statistic

 

数据来源: Taylor

 

摘要:

This article compares the accuracy of the median unbiased estimator with that of the maximum likelihood estimator for a logistic regression model with two binary covariates. The former estimator is shown to be uniformly more accurate than the latter for small to moderately large sample sizes and a broad range of parameter values. In view of the recently developed efficient algorithms for generating exact distributions of sufficient statistics in binary-data problems, these results call for a serious consideration of median unbiased estimation as an alternative to maximum likelihood estimation, especially when the sample size is not large, or when the data structure is sparse.

 

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