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32769
2011 Jan 18
0
analysis strategy - baseline and repeated measure
Hi, assume that I have a repeated measure dataset with 3 time points: baseline,
day 5 and day 10. There are 4 treatment groups (vehicle, treatment 1, treatment
2 and treatment 3). 20 subjects per treatment group. A simple straight-forward
way to analyze the data is to use mixed model:
model 1:
obj <- lmer(y ~ treatment * time +(time|subject)) where time is numeric with
value 0,5 and 10.