Hi - I have a query about how to correctly set up a factorial
repeated-measures ANOVA
design together with a per-subject behavioral covariate. In terms of
the Feat web page examples, what I would like to do is a combination
of the 1-factor 4-levels (Repeated Measures) example:
http://www.fmrib.ox.ac.uk/fsl/feat5/detail.html#ANOVA1factor4levelsRepeatedMeasures
together with the Single-Group Average with Additional Covariate example:
http://www.fmrib.ox.ac.uk/fsl/feat5/detail.html#SingleGroupAveragewithAdditionalCovariate
Suppose I take the 1-factor 4-levels example above but I also want to
covary out the
ages of the 2 subjects. Is it correct to enter as an extra covariate
the age of the
subjects but to only enter them ONCE, as follows:
Group EV1 EV2 EV3 EV4 EV5 EV6
1 1 0 1 0 0 27
1 0 1 1 0 0 35
1 1 0 0 1 0 0
1 0 1 0 1 0 0
1 1 0 0 0 1 0
1 0 1 0 0 1 0
1 1 0 0 0 0 0
1 0 1 0 0 0 0
Subject1=row 1,3,5,7
Subject2=row 2,4,6,8
EV1=subject1, EV2=subject2,
EVs3-5 ANOVA model as per standard,
EV6=age covariate
(and assuming also that I orthogonalise EV6 with respect to the other EVs)?
kind regards
Sophie
|