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> The 200 participants generally appeared healthy, but about half told the doctors they had had at least one symptom of COVID-19 in the past four weeks. The to
by tanilama 6y ago
> The 200 participants generally appeared healthy, but about half told the doctors they had had at least one symptom of COVID-19 in the past four weeks.
The total sample size is small and this doesn't seem random enough?
- Hermel 6y agoYou should be much more worried about bias than about sample size. See also this calculation, where it is discussed that a sample of 400 is more reliable than a slightly biased sample of a million participants: https://marginalrevolution.com/marginalrevolution/2020/01/big-datasmall-bias.html https://marginalrevolution.com/marginalrevolution/2020/01/bi...