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Randomisation and What It Buys

Why assigning treatment by a coin removes confounding by construction rather than by measurement, what it does not fix, and the measured difference between letting doctors choose and letting chance choose.

IntermediateModule 225 min · 100 XP
The same population assigned twice, once by severity and once by a coin, with the estimate landing on the wrong side of zero in the first case and on the true effect in the second.

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