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Why? Even if it's not totally random(they used Facebook ads), surely the data still tells us something?
by ravenstine 7y ago
Why? Even if it's not totally random(they used Facebook ads), surely the data still tells us something?
- losvedir 7y agoNot necessarily. Their population survey had 1.5% positive results. The false positive rate of the test is not known for certain but I believe the 95% confidence interval goes up to 1.7%. If that were the case, all the positive tests could even be false positives. We did learn from the study that the population rate isn't outrageously high, like 30%, but I'm not sure what more we can confidently say beyond that.
- walterbell 7y agoWhat are typical false positive rates for other tests/studies?
- DeonPenny 7y agoChina's false postives for Covid tests are 30%, I chest CT has a false positive of 6% https://www.advancedsciencenews.com/a-more-sensitive-test-for-covid-19/ https://www.advancedsciencenews.com/a-more-sensitive-test-fo.... So these test a more accurate than either of the more accurate test to diagnose Covid-19 from what I've found
- pedrosorio 7y agoThe people who chose to respond to this ad were probably a very biased sample of the population: https://twitter.com/foxjust/status/1251270848075440133/photo/1 https://twitter.com/foxjust/status/1251270848075440133/photo...
- ravenstine 7y agoWouldn't that be true of anyone participating in a study? Something about this isn't making sense to me. If a study is voluntary, isn't it biased towards those who want to participate?