Linked from
The 28 pages that link to External validity, each with the reason it gives.
Risk compensationRelated: A result from one safety setting may not predict behavior in another.
Case studyRelated: It frames questions about how far conclusions from a bounded case can travel.
Market researchRelated: A result from one sample or setting may not generalize to the wider market.
Quasi-experimentRelated: A credible effect in one setting may not generalize to another.
ExperimentRelated: Tightly controlled conditions may limit how far experimental results generalize.
Esther DufloRelated: A successful trial does not by itself show that a program will work elsewhere.
Laboratory mouseRelated: A result in laboratory mice may not generalize to humans or other settings.