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External Validity
Everything on Aqrab tagged External Validity — grouped into one landing page so readers can go deeper by problem family instead of bouncing around the archive blind.
Causal InferenceExternal ValidityStudy Design
Transportability & External Validity: When Your Causal Estimate Travels, and When It Absolutely Does Not
A practical guide to transportability and external validity for clinical researchers. Covers target populations, effect heterogeneity, trial selection, overlap, reweighting, and why “generalizable” is usually a lazy claim unless you prove the estimate can actually travel.
2026-04-16·16 min read
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