SarahChen_PharmD said:There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.
Adding a me-too, because a thread of one person's experience is not much use.
SarahChen_PharmD said:There is a difference between no evidence and evidence of no effect, and this subject is one where the two get swapped freely in both directions.
Coming at SarahChen_PharmD’s question from a different direction. 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.
Adding the numbers, since they settle part of this. Practical: whatever you change, write down the date and the reason. In three months the reason is what you will have forgotten, and the reason is what makes the record worth having.
Correct me if the detail matters more than I have assumed.
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Browse GL BiochemA narrower follow-up, since the general answer is now clear:
What did you change at the same time, and can you separate the two now?
OP back with an update, since a thread like this is useless without one.
Reporting back for the archive rather than for the thread: I did the narrow version of what was suggested, gave it the full interval, and it settled. Posting it because threads without a follow-up are half a thread.