The figures, for anyone assembling their own picture. If you are going to change something, change one thing and give it long enough to express itself. Four weeks is the usual minimum for anything pharmacological on this board, and two weeks of data has told you almost nothing.
A narrower follow-up, since the general answer is now clear:
How long did you give it before you decided it was working?
BiostatsBrad said:If you are going to change something, change one thing and give it long enough to express itself.
There is a second half to this that has not been said yet. The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either. Those three things can all be true at once, and most arguments here are two people holding different parts of that.
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Late follow-up. I did not do what was suggested, I did something adjacent, and it worked; posting the difference in case it matters to somebody.
Dr.NutriCornell said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
That is correct as far as it goes, and here is where it stops going. Yes, and the corollary is less popular: if the reasoning holds, it also holds where it produces an answer we do not like.