First, thanks for your reply.
I'm not sure how I should use the two-sample t-test with a covariate:
Let's say I have 2 groups, 5 subjects on each group, and I want to use "age" as a covariate.
In the covariate section: should I input 1 covariate, with a 10-value vector (group 1 + group2, serially) or use 2 separate covariates, each with a 5-value vector? Or perhaps I should be taking a different approach all together?
Please advise.
Thanks again
Reut.
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