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MMCTest-A safe algorithm for implementing multiple monte carlo tests

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<mark>Journal publication date</mark>1/12/2014
<mark>Journal</mark>Scandinavian Journal of Statistics
Issue number4
Number of pages19
Pages (from-to)1083-1101
Publication StatusPublished
Early online date1/04/14
<mark>Original language</mark>English


Consider testing multiple hypotheses using tests that can only be evaluated by simulation, such as permutation tests or bootstrap tests. This article introduces MMCTest, a sequential algorithm that gives, with arbitrarily high probability, the same classification as a specific multiple testing procedure applied to ideal p-values. The method can be used with a class of multiple testing procedures that include the Benjamini and Hochberg false discovery rate procedure and the Bonferroni correction controlling the familywise error rate. One of the key features of the algorithm is that it stops sampling for all the hypotheses that can already be decided as being rejected or non-rejected. MMCTest can be interrupted at any stage and then returns three sets of hypotheses: the rejected, the non-rejected and the undecided hypotheses. A simulation study motivated by actual biological data shows that MMCTest is usable in practice and that, despite the additional guarantee, it can be computationally more efficient than other methods.