Removing facial features from structural MRI images biases visual quality assessment
Table 2
The sensitivity analysis indicated that the rm-MANOVA was able to confirm differences in IQM of f = 0.16 corresponding to (i.e., a medium effect) or greater.
We ran the sensitivity analysis with G*Power, setting three groups (3 sites) and two measurements (defaced/nondefaced) with N = 580 (number of T1w per subject) per condition, with 90% power, and α = 0.02.