Starting a thread on this because it keeps coming up in ones and twos: Number needed to treat as a habit of mind
Putting this here because I do not want to be sold anything, I want to know what is actually established.
I have been trying to trace a claim back to its source and every trail ends at a summary of a summary, which is itself informative.
I would like to compare how two different measurements answer two different questions, because I have been treating them as interchangeable.
If anybody has the primary source, I would be very grateful for it — I have been going round in circles.
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