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External validity — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/External_validity
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-15T16:17:46.190Z
SHA-256 of the archived text: 3099feefff8490301652a481e50554d6b1b3936be44a178fd2e444c731175474
Stable URL of this page: https://metraipolis.com/documento/dc_be7ed90299cd

How to cite

External validity — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/External_validity (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_be7ed90299cd (Metraipolis archive dc_be7ed90299cd, sha256 3099feefff8490301652a481e50554d6b1b3936be44a178fd2e444c731175474)

BibTeX

@misc{dcbe7ed90299cd,
  title = {External validity — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/External_validity},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_be7ed90299cd; sha256 3099feefff8490301652a481e50554d6b1b3936be44a178fd2e444c731175474},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/External_validity. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

External validity is the validity of applying the conclusions of a scientific study outside the context of that study. In other words, it is the extent to which the results of a study can generalize or transport to other situations, people, stimuli, and times. Generalizability refers to the applicability of a predefined sample to a broader population while transportability refers to the applicability of one sample to another target population. In contrast, internal validity is the validity of conclusions drawn within the context of a particular study. Mathematical analysis of external validity concerns a determination of whether generalization across heterogeneous populations is feasible, and devising statistical and computational methods that produce valid generalizations. In establishing external validity, scholars tend to identify the "scope" of the study, which refers to the applicability or limitations of the theory or argument of the study. This entails defining the sample of the study and the broader population that the sample represents.

Tema degli esploratori: statistica e scienza dei dati (deposito sistematico; ricerca «causal inference»).
Fonte: Wikipedia in inglese, voce «External validity» — https://en.wikipedia.org/wiki/External_validity
Wikidata Q1057880 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q1057880
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/External_validity?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1370590349, consultata il 2026-10-15T15:48:40.983Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: b5a118c2c32cc5ed04669ce9c0f1fa6022cc0d5d00a3a5a469c67bac1b65ed5b