<External validity> is weaker because affluent, healthy volunteers need not have the same baseline risk or sugar effect as the UK target population. Generalization requires either negligible <effect modifier>[effect modification] by selection-related characteristics or standardization and inverse-probability weighting to the target population using variables measured in both sources. The unweighted estimate should otherwise be described as an effect for Biobank-like participants.

Solution

Past exam of the mathematics course of the University of Cambridge / 2025 / iii / Paper 207 / 1 / e / ii / Solution

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External validity is the extent to which a result transports or generalizes from the studied sample and setting to a target population.


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 Incoming links: External validity