Re: [R] t-test calculation correct?

2011-01-17 Thread Bert Gunter
As this is apparently a post hoc test, this is wrong. The results are biased. You have provided a nice example of how to do irreproducible science. Consult a local statistician for what this means if you do not know. -- Bert Gunter On Mon, Jan 17, 2011 at 4:35 AM, Sascha Vieweg wrote: > A multi

[R] t-test calculation correct?

2011-01-17 Thread Sascha Vieweg
A multinomial logit model (N=192) revealed (besides others) the following statistics for the outcome, y, and one predictor, x: - y = A (baseline, n=34) - y = B (n=26), B(x)=0.7323 (SE=0.2384) - y = C (n=132), B(x)=0.6535 (SE=0.2041) With a t-test I want to explore whether the two predictors dif