Adding the clinical framing, because it changes how the question reads. 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.
Dr.RheumBOS said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
Second this. I had assumed I was the exception until I read this.
Dr.RheumBOS said:The honest answer is that the effect is real, the magnitude is contested, and the individual variation is larger than either.
Adding the part of the answer the thread has not reached. Worth answering the question that was asked rather than the one behind it. The narrow version usually has an answer; the broad version usually does not, and answering the broad one is how a thread stops being useful.
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Browse GL BiochemThe figures, for anyone assembling their own picture. Give anything pharmacological four weeks before you judge it, and give anything measured weekly a four-point rolling average before you call it a trend.
A narrower follow-up, since the general answer is now clear:
How would you tell the difference between that and the alternative explanation?