Dear Freesurfer experts, We are trying to run a statistical analysis for FA in 5 ROIs. We have one group of subjects and our goal is to run regression analysis to find a relation between one behavioral test (episodic memory test) and FA. We are planning to set - the accuracy on episodic memory test as the dependent variable. - age, sex and MMSE (range 21-30) as covariates - FA in each ROI is the predictor We couldn't find an example of 3 covariates on the tutorial website, could you kindly let us know how to run glm analysis for 3 covariates? Thank you Jay Morozov