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Feb 18·edited Feb 18Liked by Oliver Johnson

I've been pedantic about many ZOE Covid Study criticisms. Perhaps unfairly, given ZOE's lack of clarity. This post is well-written as I'd expect, and hits really important limitations.

Both "accurate and ahead of other methods" is my personal bugbear. It was their repeated claim, while its use of a 14 day average was often not mentioned.

They took an average of swabs from the 14 days ending on Nov 10, and used that to judge a lockdown beginning on Nov 5?

https://web.archive.org/web/20201114105840/https://twitter.com/sourcejedi/status/1327566192253526017

They later wrote a Spectator article about it, which included the same judgement. I had a direct response from Spector himself. I still can't make sense of his reasoning.

https://gist.github.com/sourcejedi/0cf3df39c94ece6d379ba9e4d4e3eadd

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Do you know if the ‘as it appeared in real time’ Zoe data are available anywhere? I remember there being quite a few inconsistencies (some of which you’ve helpfully documented here) so could be useful to have the option to compare performance systematically...

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