We ran NBS using a one-sample t-test, 5000 permutations and p<0.05 to identify statistically significant connections at each time point such that we could reject the null hypothesis of a zero mean. In total, we analyzed functional connectivity in 8 ROIs -> 28 total connections. If NBS found 15 statistically significant connections in one connected component, is there a way to determine what the degrees of freedom are? Is it 28-1 = 27 or 15-1 = 14? Or is degrees of freedom not straightforward/relevant using NBS in this context?

Hi Anita,

the degrees of freedom will simply be the degrees of freedom for the t-test. The degrees of freedom won't depend on the number of components.
For a one-sample t-test the degrees of freedom are usually the total number of subjects minus 1
best,
Andrew

Originally posted by asinha: