Is there a way to calculate power for repeated measures ANOVA (2 groups x 7 observations)? I have searched all over, but all I can find is power.anova.test, but that would not give accurate results, right? Thanks, Matt Bridgman
Mitchell Maltenfort
2007-Sep-16 23:18 UTC
[R] power calculation for repeated measures ANOVA?
Mind a book reference instead of a software reference? Look for Bausell and Li's "Power Analysis for Experimental Research" -- cookbook style power calculations, but has explicit RM ANOVA. On 9/16/07, MATTHEW BRIDGMAN <m.bridgman at yahoo.com> wrote:> Is there a way to calculate power for repeated > measures ANOVA (2 groups x 7 observations)? I have > searched all over, but all I can find is > power.anova.test, but that would not give accurate > results, right? > > Thanks, > Matt Bridgman > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- I can answer any question. "I don't know" is an answer. "I don't know yet" is a better answer.
G*Power 3 is free software for Mac and PC, see http://www.psycho.uni-duesseldorf.de/abteilungen/aap/gpower3/ Jay On 9/16/07, MATTHEW BRIDGMAN <m.bridgman at yahoo.com> wrote:> Is there a way to calculate power for repeated > measures ANOVA (2 groups x 7 observations)? I have > searched all over, but all I can find is > power.anova.test, but that would not give accurate > results, right? > > Thanks, > Matt Bridgman > > ______________________________________________ > R-help at r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. >-- *************************************************** G. Jay Kerns, Ph.D. Assistant Professor / Statistics Coordinator Department of Mathematics & Statistics Youngstown State University Youngstown, OH 44555-0002 USA Office: 1035 Cushwa Hall Phone: (330) 941-3310 Office (voice mail) -3302 Department -3170 FAX E-mail: gkerns at ysu.edu http://www.cc.ysu.edu/~gjkerns/
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