This study picked districts that favored the preconceived outcome. It would have been equally feasible to pick districts that supported an outcome of masks didn't work. Of course this report doesn't give method or procedures only conclusions, not helpful at all.
This study picked districts that favored the preconceived outcome. It would have been equally feasible to pick districts that supported an outcome of masks didn't work. Of course this report doesn't give method or procedures only conclusions, not helpful at all.
Possibly. The fact that the researchers personally invited a small subset of the total 13,800 districts is a disturbing component of the study design.