Are you doing 5 different tests or just one test? It is a tricky
question as to whether you should correct across 5 tests or not.
Ideally, one should, but I don't think I've ever seen it done in
practice. As a reviewer, I might not demand it for only 5 tests.
On 6/20/18 9:17 AM, jahanvi patel wrote:
Hello,
We have a question about using glm_fit in freesurfer.
When we model several covariates (behavioral scores) in glm, and we
wanted to know the correlation between cortical thickness changes with
the changes of behavioral scores. We obtained the correlation results
nicely after using freesurfer's monte carlo correction (eg. increase
of behavioral scores is correlated with the increase of cortical
thickness changes).
Should we still perform the bonefferi corrections on the results we got ?
(because we have entered 5 covariates into the glm model, so we are
wondering if it is still needed to divide the alpha-value by 5
to determine the final significant findings)?
Thank you so much for helping us,
Jahanvi
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