An argument for *random* COVID-19 testing. Tesing is biased toward the sick & ill. So we don't know how much COVID-19 there is or how dangerous it is. This uncertainty => over and/or under reaction. We can't manage what we don't measure respresentatively. https://www.statnews.com/2020/03/17/a-fiasco-in-the-making-as-the-coronavirus-pandemic-takes-hold-we-are-making-decisions-without-reliable-data/ …
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If nothing else, I can imagine the panic if you suddenly approached a truly random sample and asked them all to get tested, while denying people with symptoms that avenue
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Totally random sampling makes no sense as we want probability sampling to favor finding positive cases. But the current approach doesn't give us statistical knowledge. I'm not an epidemiologist (don't know the field also see ethics thread) but current test frame teaches us little
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