BiostatsBrad said:If you are going to change something, change one thing and give it long enough to express itself.
This answered a question I did not know how to ask.
Adding the clinical framing, because it changes how the question reads. Start from the measurement rather than the conclusion. Almost every disagreement here turns out to be two people measuring different things and comparing the numbers anyway.
Dr.PathRoch said:Start from the measurement rather than the conclusion.
This is my experience too, for whatever a second data point is worth. Posting only so the count is not one.
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Shop Reference StandardsDr.PathRoch said:Start from the measurement rather than the conclusion.
There is a second half to this that has not been said yet. The version of this that has an answer is narrower than the version being asked. Narrow it and it becomes tractable; leave it broad and the thread will produce nine confident and incompatible replies.
I would rather be corrected than agreed with, if it comes to it.
Adding the numbers, since they settle part of this. The boring version of this is the one that works, and the boring version is: measure a baseline, change one variable, wait, measure again under the same conditions. Nobody wants that answer and it is still the answer.