[Freesurfer] Plotting Longitudinal Data and Calculating Effect Sizes

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Hi FreeSurfer Experts,

I used the longitudinal pipeline and analyzed my data using the univariate linear mixed effects models. I had a couple of questions:

1) The model outputted the F and p values. How do I calculate the effect size? 2) How do I plot my analyses? I would like to create a plot for change in CC volume with eBAC. Below is my model:

Yij = ß1 + ß2(timeij) + ß3(eBACi) + ß4*estimated eBACi*timeij + ß5(genderi) ß6(intracranial volumei) + b1i + b2i(timeij) + eij.

Thank you for your help!

Jessica

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Jessica Hua, M.A. Cognitive and Emotional Control Lab Doctoral Candidate Clinical Psychology University of Missouri