Generalized Augmentation for Control of the k-Familywise Error Rate

Authors

  • Alessio Farcomeni Department of Public Health and Infectious Diseases, Sapienza - University of Rome, Italy

DOI:

https://doi.org/10.6000/1929-6029.2012.01.02.04

Keywords:

Augmentation, false negatives rate, GAUGE, generalized familywise error rate, multiple testing

Abstract

When performing many hypothesis tests at once a correction for multiplicity is needed to both keep under control the number of false discoveries and be able to detect the true departures from the null hypotheses. A recently introduced method which has been proved to be useful in genomics, neuroimaging and other fields consists in probabilistically controlling that the number of falsely rejected hypotheses does not exceed a pre-specified (low) . We introduce a new multiple testing procedure which is based on the idea of generalized augmentation: at first a number of hypotheses is rejected without any correction, then this number is adjusted by adding or removing rejections. The procedure is shown to keep under control the probability of  or more false rejections. We show a small simulation study which suggests that the new procedure is very powerful, especially when the number of tests at stake is large. We conclude with an illustration on a benchmark data set on classification of colon cancer.

Author Biography

Alessio Farcomeni, Department of Public Health and Infectious Diseases, Sapienza - University of Rome, Italy

Department of Public Health and Infectious Diseases

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Published

2012-12-20

How to Cite

Farcomeni, A. (2012). Generalized Augmentation for Control of the k-Familywise Error Rate. International Journal of Statistics in Medical Research, 1(2), 113–119. https://doi.org/10.6000/1929-6029.2012.01.02.04

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Section

General Articles