Dear SPMers,
I am confused about the difference between the 'Covariates' listed in the
Multiple Regression Design in the 2nd level analysis. After choosing 'Multiple
regression' under 'Design', there is a term called 'Covariates' right below
'Scans'. However, there is another 'Covariates' at the same level of 'Design'
(right below 'Intercept' if you are in the design of 'Multiple regression'.
What's the difference between the two 'Covarates'.
Let's say I would like to know whether some behavioral performance is correlated
with subjects' brain activity, do I enter the behavioral performance in the
'Covariates' under 'Multiple regression' or in the one that's at the same level
of 'Design'.
Many thanks.
Sien
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