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v2026.11,610 entries · CC-BY 4.0
Dictionary termTrack CStablev2026.2

Generalisability

The extent to which a study's findings extend to populations, settings, or conditions other than those directly sampled.

ByCASRAI Editorial Board
· Last updated 21 May 2026

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Examples

Worked examples

  • Is an instance

    A drug efficacy effect observed in US trial populations and confirmed in Sub-Saharan African populations.

  • Is an instance

    A behavioural finding from undergraduates replicated in older non-Western samples.

Counter-examples

Looks similar, but isn't

  • Not an instance

    Re-running the analysis (reproducibility).

  • Not an instance

    Re-collecting data with the same demographic profile (replicability, not generalisability).

Editorial commentary

Generalisability addresses external validity. A finding may be highly reproducible and replicable within a specific population yet fail to generalise to other populations, time periods, or contexts. Sampling, recruitment, and the representativeness of the study setting all bear on generalisability.

References

  • Shadish, Cook, Campbell, 'Experimental and Quasi-Experimental Designs for Generalized Causal Inference' (2002); National Academies (2019).

Also known as

external validity · transportability

Machine-readable encodings

Use in your systems

JATS XML <role> element
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Schema.org DefinedTerm (JSON-LD)
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