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| 공간적 층화 이질성× | 체계적 표본 추출× | |
|---|---|---|
| 분야≠ | 표본추출 | 조사방법론 |
| 계열 | Process / pipeline | Process / pipeline |
| 기원 연도≠ | 2010 | Mid-20th century (Cochran 1953; Kish 1965) |
| 창시자≠ | Jinfeng Wang | William G. Cochran; formalized in survey sampling theory |
| 유형≠ | Geographical detection and stratification method | Probability sampling design |
| 원전≠ | Wang, J. F., Li, X. H., Christakos, G., Liao, Y. L., Zhang, T., & Gu, X. (2010). Geographical detectors–based health risk assessment and its application in the neural tube defects study for the C–H plane. International Journal of Geographical Information Science, 24(1), 107–127. DOI ↗ | Cochran, W. G. (1977). Sampling Techniques (3rd ed.). John Wiley & Sons. ISBN: 978-0471162407 |
| 별칭≠ | Geodetector, GeoDetector | interval sampling, systematic random sampling, equal-interval sampling, fixed-interval sampling |
| 관련≠ | 3 | 5 |
| 요약≠ | Spatial Stratified Heterogeneity, commonly known as Geodetector, is a framework introduced by Jinfeng Wang and colleagues in 2010 for measuring and detecting spatial heterogeneity in data and identifying environmental risk factors. It quantifies the degree to which a given factor (variable) explains spatial variation in an outcome and is particularly valuable for environmental epidemiology, ecology, and geographical analysis where spatial non-stationarity is common. | Systematic sampling is a probability sampling technique in which every k-th element is selected from an ordered list of the population after a random starting point. With population size N and desired sample size n, the sampling interval k = N/n is computed and one unit is chosen at random from the first interval; all subsequent units are selected by adding k repeatedly. The method is operationally simple, yields a spread-out sample, and often achieves lower variance than simple random sampling when the list has no harmful periodicity. |
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