เปรียบเทียบวิธี
ดูวิธีที่เลือกเทียบกันแบบเคียงข้าง แถวที่ต่างกันจะถูกเน้นไว้
| การเลือกตัวอย่างกรณีที่เบี่ยงเบน× | Maximum Variation Sampling× | |
|---|---|---|
| สาขาวิชา | ระเบียบวิธีสำรวจ | ระเบียบวิธีสำรวจ |
| ตระกูล | Process / pipeline | Process / pipeline |
| ปีกำเนิด≠ | 1990 | 1985 (Lincoln & Guba); elaborated 1990–2002 (Patton) |
| ผู้ริเริ่ม≠ | Michael Quinn Patton | Lincoln & Guba; systematised by Michael Quinn Patton |
| ประเภท | Purposive qualitative sampling strategy | Purposive qualitative sampling strategy |
| แหล่งต้นตำรับ≠ | 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 |
| ชื่อเรียกอื่น | extreme case sampling, outlier sampling, negative case sampling, deviant-case selection | maximum variation sampling, maximum diversity sampling, MVS, heterogeneous sampling |
| ที่เกี่ยวข้อง | 5 | 5 |
| สรุป≠ | 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. |
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