Power Loss of Stratified Log-Rank Test in Homogeneous Samples
Joint Authors
Wang, Hongyue
Tu, Xin M.
Feng, Changyong
Source
International Journal of Quality, Statistics, and Reliability
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-4, 4 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-03-07
Country of Publication
Egypt
No. of Pages
4
Main Subjects
Economics & Business Administration
Economy
Abstract EN
We study the loss of power of the stratified log-rank test (SLRT) compared to the unstratified log-rank test (ULRT) in the case of a large number of strata with relatively a small number of stratum sizes in terms of the asymptotic distributions of test statistics under local alternatives.
The SLRT tends to lose information due to overstratification.
It is better to test the homogeneity among strata before using the stratified log-rank test.
American Psychological Association (APA)
Feng, Changyong& Wang, Hongyue& Tu, Xin M.. 2010. Power Loss of Stratified Log-Rank Test in Homogeneous Samples. International Journal of Quality, Statistics, and Reliability،Vol. 2010, no. 2010, pp.1-4.
https://search.emarefa.net/detail/BIM-510098
Modern Language Association (MLA)
Feng, Changyong…[et al.]. Power Loss of Stratified Log-Rank Test in Homogeneous Samples. International Journal of Quality, Statistics, and Reliability No. 2010 (2010), pp.1-4.
https://search.emarefa.net/detail/BIM-510098
American Medical Association (AMA)
Feng, Changyong& Wang, Hongyue& Tu, Xin M.. Power Loss of Stratified Log-Rank Test in Homogeneous Samples. International Journal of Quality, Statistics, and Reliability. 2010. Vol. 2010, no. 2010, pp.1-4.
https://search.emarefa.net/detail/BIM-510098
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-510098
