Nate Silver @NateSilver538
Yeah, I was subtweeting this Scotland COVID study earlier, but it is a Bad Use of Polling. Low response rates, obvious signs of response bias. No real attempt to correct for it, study authors seem unaware of the problems, frankly. Doing good research on this topic is hard. — PolitiTweet.org
Paul Novosad @paulnovosad
Respondents were significantly and substantively different from non-respondents on observables (e.g. 61% vs 50% fem… https://t.co/7EByZinP4c