เปรียบเทียบวิธี
ดูวิธีที่เลือกเทียบกันแบบเคียงข้าง แถวที่ต่างกันจะถูกเน้นไว้
| การเลือกตัวอย่างตามวัตถุประสงค์แบบออนไลน์× | Snowball Sampling× | |
|---|---|---|
| สาขาวิชา | ระเบียบวิธีสำรวจ | ระเบียบวิธีสำรวจ |
| ตระกูล | Process / pipeline | Process / pipeline |
| ปีกำเนิด≠ | 1990s–2000s (with growth of internet-based research) | 1961 |
| ผู้ริเริ่ม≠ | Adaptation of purposive sampling (Patton, 1987) to online/digital research contexts | Leo A. Goodman |
| ประเภท≠ | Non-probability qualitative sampling | Non-probability sampling technique |
| แหล่งต้นตำรับ≠ | Patton, M. Q. (2002). Qualitative Research and Evaluation Methods (3rd ed.). Sage Publications. ISBN: 978-0761919711 | Goodman, L. A. (1961). Snowball sampling. Annals of Mathematical Statistics, 32(1), 148–170. DOI ↗ |
| ชื่อเรียกอื่น | internet-based purposive sampling, web purposive sampling, online criterion-based sampling, digital purposive sampling | chain-referral sampling, network sampling, respondent-driven sampling, referral sampling |
| ที่เกี่ยวข้อง | 3 | 3 |
| สรุป≠ | 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. | Snowball sampling is a non-probability recruitment technique in which initial participants (seeds) refer the researcher to others who meet the study criteria, and those referrals in turn refer further participants. The sample grows incrementally — like a rolling snowball — until the required size or theoretical saturation is reached. It is the method of choice when a target population has no accessible sampling frame, such as undocumented migrants, illicit drug users, survivors of stigmatised experiences, or members of closed professional networks. |
| ScholarGateชุดข้อมูล ↗ |
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