Dr.RenalNash 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.
Adding the numbers, since they settle part of this. One habit that pays for itself: post the method alongside the number. A figure without its method cannot be checked, and an unchecked figure is how this community accumulates folklore.
A narrower follow-up, since the general answer is now clear:
How would you tell the difference between that and the alternative explanation?
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Shop Reference StandardsSleepDoc_PDX said:One habit that pays for itself: post the method alongside the number.
Worth saying that the confident version of this is more useful to the person writing it than to the person reading it.
SleepDoc_PDX said:One habit that pays for itself: post the method alongside the number.
True, and it depends on a baseline nobody has stated. Without knowing where someone started, the same number can be an excellent result or a disappointing one.