Re: [Freesurfer] qdec and analysis results

Hi Catherine, are these two different analyses? Or are they two contrasts from the same analysis? doug

Cat Chong wrote:

Hello Experts,

I am analyzing cortical thickness of two groups (APOE 4carries vs. noncarriers) in freesurfer with age as a co-variate. I am uncertain about the statistical differences behind: 1)Does the correlation between thickness and age accounting for APOE, differ from 0? in contrast to: 2)Does the thickness-age correlation differ between 1 and 0?

I get significant results after FDR correction for the first but not for the second analysis.

thank you for your help, catherine

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