Programming the statistical procedures from SAS

Multiple comparison tests that account for correlation between linear combinations

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Occasional Contributor
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Multiple comparison tests that account for correlation between linear combinations

Hi,

Can using multiple comparison procedures that accommodate for correlation between linear combinations (such as MaxT, MinP, Tukey etc) be used to control the FWE for any set of non-orthogonal contrasts? That is to say, could I construct a contrast-matrix involving any set of non-orthogonal vectors with overlapping information and still be sure that FWE is controlled and that the interpretation is valid? (Given that the contrast had a valid interpretation to begin with...)

Respected Advisor
Posts: 2,655

Re: Multiple comparison tests that account for correlation between linear combinations

I believe the MinP method would cover this (see page 285--288 in Westfall et al., Mutiple Comparisons and Multiple Tests Using SAS, 2nd ed.).

Steve Denham

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