Hypothesis test
Somers' D
Somers' D 是一个非对称的序数关联系数，由 Robert H. Somers 于 1962 年提出。它通过测量一致对与不一致对相对于所有在指定自变量上未打结的对的超额，来量化一个序数变量预测另一个序数变量的程度。它是序数回归中 Kendall's tau 的标准伴侣，并且在 ROC 曲线分析和逻辑回归中的 c 统计量中居于核心地位。
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来源
- Somers, R. H. (1962). A new asymmetric measure of association for ordinal variables. American Sociological Review, 27(6), 799–811. DOI: 10.2307/2090408 ↗
- Agresti, A. (2010). Analysis of Ordinal Categorical Data (2nd ed.). Wiley. ISBN: 978-0470082898
- Harrell, F. E. (2001). Regression Modeling Strategies. Springer. ISBN: 978-0387952321
如何引用本页
ScholarGate. (2026, June 3). Somers' D (Asymmetric Ordinal Association Measure). ScholarGate. https://scholargate.app/zh/statistics/somers-d
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