Dear Prof. Zalesky,

Thank you once again for the detailed explanations on designs and their implementation in NBS. I have another question and it is about statistical thresholding. At present, I'm doing a correlation analysis of subjects' connectivity with the age. From the forum pages I found that there are three ways of searching for correlations:
1. Positive correlations (t-test) | set up [0 1] contrast
2. Negative correaltion (t-test) | set up [0 -1] contrast
3. Both positive and negative correlations (F test) | set up [0 1] contrst and select F-test instead of t-test

In my analysis, the threshold for t-test is 3.1. The question is, does one have to adjust this threshold when selecting the F-test instead of t-test? As I understand, the relationship between the two values is F=t^2. As such, to compare the connectivity maps from both statistical measures I need to change the t=3.1 (ttest) to F=t^2=9.61 (F-test). By doing so, the adjusted threshold brings more similarities with the t-test, which makes it easier to compare. I attached the .pdf to illustrate my concern.

Thank you in advance for the answer.

Regards,
Maksym