b3-ecological-fallacy {ctfepi}sealed case file
Ecological Fallacy
Case B3, The Map in the PaperCross-Sectional and Ecological Studiesscene 2medium200 pts
Case
A newspaper map links district salt sales to stroke; you test what district data can and cannot say.
What this scene will ask
Country level and individual level data for the same exposure.
Planned flag: ecological slope, 3 dp; pooled within country slope, 3 dp; the country whose removal flips the sign of the ecological slope.
Status
[#] Sealed. This scene opens when it is written and passes review. Nothing on CTFEpi expires, so there is no rush.