قارن الطرق
راجع الطرق التي اخترتها جنبًا إلى جنب؛ الصفوف المختلفة مميَّزة.
| أخذ العينات الثلجية الموزونة× | العينة القصدية× | |
|---|---|---|
| المجال | منهجية المسح | منهجية المسح |
| العائلة | Process / pipeline | Process / pipeline |
| سنة النشأة≠ | 1997 | Formalized ~1980–1990 |
| صاحب الطريقة≠ | Douglas D. Heckathorn (formal probability-weighted variant) | Michael Quinn Patton (systematic articulation); roots in early qualitative inquiry |
| النوع≠ | Probability-adjusted chain-referral sampling | Non-probability sampling strategy |
| المصدر التأسيسي≠ | Heckathorn, D. D. (1997). Respondent-driven sampling: A new approach to the study of hidden populations. Social Problems, 44(2), 174–199. DOI ↗ | Patton, M. Q. (1990). Qualitative Evaluation and Research Methods (2nd ed.). Sage. ISBN: 978-0803937796 |
| الأسماء البديلة | weight-adjusted chain-referral sampling, probability-weighted snowball sampling, WSS, weighted referral sampling | judgmental sampling, selective sampling, criterion-based sampling, purposeful sampling |
| ذات صلة≠ | 5 | 4 |
| الملخص≠ | Weighted snowball sampling is a chain-referral technique in which participants recruit peers from a hidden or hard-to-reach population, and differential inclusion probabilities are estimated and corrected through statistical weights. Unlike basic snowball sampling, the weighting step allows approximately unbiased population estimates, bridging the gap between convenience-driven recruitment and probability-based inference. | Purposive sampling is a non-probability strategy in which the researcher deliberately selects participants, documents, or cases that are information-rich with respect to the research question. Rather than drawing units at random, the researcher applies explicit criteria aligned with the study's purpose, maximising the depth and relevance of the data collected. It is the default sampling logic in most qualitative research designs and is also used in mixed-methods and applied evaluative work. |
| ScholarGateمجموعة البيانات ↗ |
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