مقایسهٔ روشها
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| نمونهگیری طبقهبندیشده وزندار× | نمونهگیری طبقهای× | |
|---|---|---|
| حوزه | روششناسی پیمایش | روششناسی پیمایش |
| خانواده | Process / pipeline | Process / pipeline |
| سال پیدایش≠ | 1953–1965 | 1977 |
| پدیدآور≠ | Leslie Kish; William G. Cochran | William G. Cochran |
| نوع≠ | Probability sampling with weighting | Probability-based survey sampling design |
| منبع بنیادین≠ | Cochran, W. G. (1977). Sampling Techniques (3rd ed.). John Wiley & Sons. ISBN: 978-0471162407 | Cochran, W. G. (1977). Sampling Techniques (3rd ed.). Wiley. ISBN: 978-0-471-16240-7 |
| نامهای دیگر | stratified sampling with weights, design-weighted stratified sampling, post-stratification weighting, WSS | Proportional Stratified Sampling, Optimal Allocation Sampling, Stratum-Based Sampling, Tabakalı Örnekleme |
| مرتبط≠ | 6 | 2 |
| خلاصه≠ | Weighted stratified sampling divides a population into non-overlapping strata and draws a probability sample from each stratum, then attaches a design weight to every selected unit so that estimates correctly represent the full population. Weights compensate for unequal selection probabilities that arise from disproportionate stratum allocations, non-response, or frame imperfections, making the procedure the backbone of most large-scale national and international surveys. | Stratified sampling is a probability sampling design in which the target population is partitioned into non-overlapping, exhaustive subgroups called strata, and independent probability samples are drawn within each stratum. Formalized by William G. Cochran in Sampling Techniques (1977), the method exploits known population structure to reduce variance and guarantee representativeness of all major subgroups, making it a cornerstone of large-scale survey research and official statistics. |
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