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| 적응적 목적 표본 추출× | 스노우볼 표본 추출× | |
|---|---|---|
| 분야 | 조사방법론 | 조사방법론 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 1980s–1990s | 1961 |
| 창시자≠ | Rooted in Patton's purposive sampling typology; adaptive dimension from iterative qualitative inquiry traditions | Leo A. Goodman |
| 유형≠ | Qualitative sampling strategy | Non-probability sampling technique |
| 원전≠ | 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 ↗ |
| 별칭 | iterative purposive sampling, emergent purposive sampling, adaptive qualitative sampling, dynamic purposive sampling | chain-referral sampling, network sampling, respondent-driven sampling, referral sampling |
| 관련≠ | 5 | 3 |
| 요약≠ | Adaptive purposive sampling is a qualitative strategy in which the researcher begins with explicitly stated, theory-driven selection criteria and then deliberately revises those criteria as data collection proceeds and new understanding emerges. Unlike fixed purposive sampling — where criteria are locked in before fieldwork — the adaptive variant treats the sampling frame as a working hypothesis that is refined in response to early findings, enabling the study to follow the evidence into unexpected but analytically important directions. | 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. |
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