R help - Jun 2014 - control for repeated observations in a simple correlation design

Dear all

 

I want to correlate 2 variables (EEG and Motorperformance) for 18 observations.
However, these variables consist of only 6 subjects that were measured 3 times
(leading to 18 observations). How can I calculate the correlation coefficient
and p-value and control for this "repeated observations" in the pooled
dataset (I don't want to take the mean for each subject)?

 

All the best

Caroline
 		 	   		  
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