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	Internetowe pobieranie próby warstwowej	Proste losowanie proste online
Dziedzina	Metodologia badań sondażowych	Metodologia badań sondażowych
Rodzina	Process / pipeline	Process / pipeline
Rok powstania	Late 1990s–2000s (as internet surveys became prevalent)	Late 1990s–2000s (digital adaptation)
Twórca	Adapted from cluster sampling (Mahalanobis, Hansen & Hurwitz, 1940s) to online survey contexts	Adapted from classical simple random sampling (Neyman, 1934) for web/digital survey contexts; operationalised by survey methodology researchers from the late 1990s onward
Typ	Probability sampling technique	Probability sampling design
Źródło pierwotne	Couper, M. P. (2000). Web surveys: A review of issues and approaches. Public Opinion Quarterly, 64(4), 464–494.	Couper, M. P. (2008). Designing Effective Web Surveys. Cambridge University Press. ISBN: 978-0521700535
Inne nazwy	internet cluster sampling, web cluster sampling, digital cluster sampling	web simple random sampling, internet SRS, digital random sampling, online SRS
Pokrewne	4	5
Podsumowanie	Online cluster sampling applies the classic cluster sampling logic to internet-based research: naturally occurring digital groups — such as online communities, email lists, forum memberships, or institutional user registries — serve as clusters, and selected clusters are surveyed in full or partially via web-based instruments. It offers a practical route to probability-based online samples when no complete list of individuals exists but lists of digital groups are accessible.	Online simple random sampling applies the logic of classical simple random sampling (SRS) to digital data collection: every member of a defined online population has an equal and independent probability of being selected, and the survey is administered via web platform, email link, or online panel. The approach combines the statistical rigour of probability sampling with the speed and cost advantages of internet-based survey delivery.