[R] Post-hoc tests for repeated measures in balanced experimental design

2010-05-31 Thread Thomas Meigen
Hi, I am performing experiments in the field of visual perception where we often apply balanced designs. Within a group of normal subjects, we vary different stimulus conditions (like contrast, luminance, temporal frequency of stimulation) and derive some psychophysical or

Re: [R] Post-hoc tests for repeated measures in balanced experimental design

2010-05-31 Thread Thomas Meigen
Dear Dennis, thank you for your fast response. Perhaps I should have described the experimental situation in more detail. This tells you that Subject is being treated as a random block factor, and that Conditions 1 and 2 are combinations of treatments applied to each subject. In other