4 ms·
Seems you're right. From page 4 of the paper: 56 This analysis used the COVID Trends and Impact Survey (CTIS), created by the Delphi Group at 57 Carneg
by forgotpwd16 5y ago
Seems you're right. From page 4 of the paper:
56 This analysis used the COVID Trends and Impact Survey (CTIS), created by the Delphi Group at
57 Carnegie Mellon University (CMU) and conducted in collaboration with Facebook Data for
58 Good. Survey sampling is described in the eMethods. Survey weights accounting for the
59 sampling design and non-response are post-stratified to match the US general population by
60 age, gender, and state. The study design ensures CMU researchers do not see usernames or
61 profile information and Facebook does not see survey microdata.
A not sane approach giving off potentially erroneous data.