3 ms·
It’s the opposite. Observational studies are very biased by the selection process and the only way to get signal from them is rct.
by reenorap 3mo ago
It’s the opposite. Observational studies are very biased by the selection process and the only way to get signal from them is rct.
- warshinder 3mo agoSo you have a 30 person RCT, half the treatment bails midway through, you include the assigned but not treated (ITT) in the analysis. That’s going to give you the power to make a definitive statement while a large scale longitudinal with n=50,000 will not?
- reenorap 3mo ago[dead]