Ecological studies have been a problematic element of COVID research, but there *are* questions they are well-suited to answering.
#AcademicTwitter, do you have a favorite (maybe non-COVID) ecological study that asks a clear group-level question & answers it well?
Replying to @EpiEllie
Not a favorite study per se, but the design has been used very effectively to look at seat belt laws and fatalities. Also suicide prevention by restriction of means
4:38 PM - 22 Jul 2020
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