> On Jul 7, 2016, at 5:43 PM, lhart...@yorku.ca wrote: > > > > Hello, > > I am analyzing some data that has violated assumptions of ANOVA
Violated? Violated how exactly? > and am > using the WRS2 package in R. Where's the code? > I am comparing three groups, Dx, > (schizophrenia, schizoaffective and control) on various variables, one of > which is premorbid IQ (preIQ). > > preIQdataSDx #trimmed means > > tapply(preIQdataSPreIQ, preIQdataSDx, mean, > tr=.2, na.rm=TRUE) CR's and minor editing added. > Schizophrenia Schizoaffective Control > 89.29412 95.83333 95.54545 > > > The post hoc test Test? Test of what (and how)? > shows that the schizophrenia and controls group differ > significantly which makes sense when you look at their trimmed means; > however, what does not make sense is that the control and schizoaffective > disorder groups differ significantly from each other (their means are > almost identical). Additionally, if the schizophrenia and control group > differ significantly, shouldn't the schizophrenia group also differ > significantly from the control group too, Did you really intend that sentence to say that? > as the control group and > schizoaffective disorder groups have very similar means. I am wondering if > the lincon post hoc test is flawed in some way or if I am not setting > something up correctly in R. Any help is greatly appreciated. That's the test ( lincon? ) you didn't illustrate with code? > Thank you. > > Best, > > Leah Hartman > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. David Winsemius Alameda, CA, USA ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
