Порівняння методів
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| Вибіркова сукупність девіантних випадків онлайн× | Цілеспрямована вибірка онлайн× | |
|---|---|---|
| Галузь | Методологія опитувань | Методологія опитувань |
| Родина | Process / pipeline | Process / pipeline |
| Рік появи≠ | 1990s–2000s (deviant case strategy); online variant ~2000s–2010s | 1990s–2000s (with growth of internet-based research) |
| Автор методу≠ | Patton, M. Q. (deviant case strategy); online adaptation via web-based qualitative research practice | Adaptation of purposive sampling (Patton, 1987) to online/digital research contexts |
| Тип≠ | Purposive qualitative sampling strategy (online variant) | Non-probability qualitative sampling |
| Основоположне джерело≠ | Patton, M. Q. (2002). Qualitative Research and Evaluation Methods (3rd ed.). Sage. [Chapter 5: Purposeful Sampling, deviant/extreme case strategy, pp. 231-234] ISBN: 978-0761919711 | Patton, M. Q. (2002). Qualitative Research and Evaluation Methods (3rd ed.). Sage Publications. ISBN: 978-0761919711 |
| Інші назви | online extreme case sampling, internet-based deviant case sampling, online outlier sampling, web-based atypical case sampling | internet-based purposive sampling, web purposive sampling, online criterion-based sampling, digital purposive sampling |
| Пов'язані≠ | 5 | 3 |
| Підсумок≠ | Online deviant case sampling is a purposive qualitative sampling strategy in which the researcher deliberately seeks out and recruits participants who represent extreme, unusual, or outlier instances of the phenomenon under study, using online channels such as forums, social media, specialist communities, or digital registries. It inherits the logic of Patton's deviant (extreme) case sampling and applies it in internet-mediated research contexts where rare or hard-to-reach atypical cases can be located more efficiently than through face-to-face methods. | Online purposive sampling applies the logic of criterion-based participant selection to digital recruitment channels — including social media platforms, online communities, email lists, and research recruitment websites. Researchers intentionally seek individuals who possess the characteristics, experiences, or expertise directly relevant to the research question, using internet-based tools to locate and screen them. The method preserves the defining feature of purposive sampling — deliberate selection based on fitness for purpose — while leveraging the reach and accessibility of online environments. |
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