I have multiple sig pairwise comparisons generated from a 3-way interaction from a mixed model GLM. I want to present these comparisons in my thesis but wish to do it concisely so it is easy to follow for my examiners to read.
Would appreciate any help or advice.
Thanks
I like visual plots. So you could make a trellis plot with a the two-way plots X axis Factor 1, by points (Factor 2) and the trellis (or panels being the third Factor). Plots should show the SE on teh plot.
If there is any hierarchical structure (like a split plot) you will have different standard errors- for comparing:
main plots with each other.
Subplots within a main plot
subplots from one Main plot to subplots from a second main plot.
Most good Books (eg. Sue Welham et al Text) will show the equations, but you should be able to get them from the model in R, using the correct error Terms.
Statistical Methods in Biology: Design and Analysis of Experiments and Regression. S.J. Welham, S.A. Gezan, S.J. Clark, A. Mead.
Hi David
There are several post-hoc pairwise comparisons in:
. Landau, S. and Everitt, B. S.(2004). A Handbook of Statistical analyses using SPSS.
.Howitt, D. and Cramer, D.(2008). Introduction to SPSS.
Regards,
Zuhair
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