3 ms·
n=116 is not high power enough to make a strong claim that it is not more effective, only that they were unable to prove that it was effective.
by aoeusnth1 6y ago
n=116 is not high power enough to make a strong claim that it is not more effective, only that they were unable to prove that it was effective.
- joshgel 6y agoas i said lower down: "ehhh, really depends on what effect size you are looking for. presumably you would want to see a 10% effect size or more. (detecting that intermittent fasting caused 2 lbs more weight loss than CMT would be statistically valid, but not clinically that important)" power depends not just on n but also on the expected difference between the means (and the standard deviation of the mean)