مقایسهٔ روشها
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| نمونهگیری موارد انحرافی× | نمونهگیری حداکثر تنوع× | |
|---|---|---|
| حوزه | روششناسی پیمایش | روششناسی پیمایش |
| خانواده | Process / pipeline | Process / pipeline |
| سال پیدایش≠ | 1990 | 1985 (Lincoln & Guba); elaborated 1990–2002 (Patton) |
| پدیدآور≠ | Michael Quinn Patton | Lincoln & Guba; systematised by Michael Quinn Patton |
| نوع | Purposive qualitative sampling strategy | Purposive qualitative sampling strategy |
| منبع بنیادین≠ | Patton, M. Q. (2002). Qualitative Research and Evaluation Methods (3rd ed.). Sage Publications. ISBN: 978-0761919711 | Patton, M. Q. (2002). Qualitative Research and Evaluation Methods (3rd ed.). Sage. Chapter 5: Purposeful Sampling. ISBN: 978-0761919711 |
| نامهای دیگر | extreme case sampling, outlier sampling, negative case sampling, deviant-case selection | maximum variation sampling, maximum diversity sampling, MVS, heterogeneous sampling |
| مرتبط | 5 | 5 |
| خلاصه≠ | Deviant case sampling is a purposive qualitative sampling strategy in which the researcher intentionally selects cases that are unusual, exceptional, or markedly different from the norm — outliers, extreme successes, or conspicuous failures. The goal is not statistical representation but deep learning from cases that illuminate the boundaries of a phenomenon, challenge prevailing assumptions, or reveal processes that typical cases obscure. | Maximum variation sampling is a purposive qualitative sampling strategy in which the researcher deliberately selects cases that span the widest possible range of variation on dimensions central to the study. The goal is not statistical representation but the identification of common patterns that cut across diverse cases as well as the documentation of the unique ways each context shapes the phenomenon under investigation. |
| ScholarGateمجموعهداده ↗ |
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