Following on from TrialTracker_MD — and this may be the naive question:
How long did you give it before you decided it was working?
bri_stats said:If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.
This is where I part company with the consensus forming above. Not convinced. The evidence being cited is consistent with the conclusion and also consistent with two other conclusions nobody has ruled out.
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Shop Reference Standardsbri_stats said:If you are comparing against somebody else’s result, check that you are comparing the same measurement taken the same way.
That reframing is the part I needed. I will report back once I have actually tried it.
From the other side of the consultation, briefly. Order of operations matters more than any single choice here: establish a baseline, change one thing, wait long enough for it to express itself, then measure again under the same conditions.
If somebody has the primary source to hand I would rather cite it than paraphrase it.