Nate Silver

@NateSilver538 ↗

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Last Checked Oct. 7, 2020

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Fri Apr 24 16:30:11 +0000 2020

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Nate Silver @NateSilver538

Also, it's hard to do a TRULY random study. For instance, NY's process seems to be something like: they set up stations at randomly-selected grocery stores. But what happens *within* those stores is less clear and there is probably some degree of self-selection. — PolitiTweet.org

Posted April 24, 2020 Hibernated

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Nate Silver @NateSilver538

Another one: some studies are only conducted among purportedly asymptomatic people. If, say, 10% of *asymptomatic* people in a given population test positive, the overall rate of disease (symptomatic + asymptomatic people) will be higher. — PolitiTweet.org

Posted April 24, 2020 Hibernated

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Nate Silver @NateSilver538

Having a station in public place like a grocery store is probably selecting for relatively healthy people, which could lead to an underestimate of the infection rate. At a minimum, anybody who is *currently* experiencing COVID-19 symptoms hopefully will not be grocery shopping. — PolitiTweet.org

Posted April 24, 2020 Hibernated