V2EX path coefficient

Path Coefficient

Definition / 释义

路径系数:在统计建模(尤其是路径分析结构方程模型 SEM)中,用来表示一个变量对另一个变量的直接影响强度与方向的系数,常为标准化回归系数(standardized coefficient)。它可以为正、为负或接近 0。(在不同软件与模型设定下,可能也有非标准化的路径系数。)

Pronunciation / 发音(IPA)

/pθ kofnt/

Examples / 例句

The path coefficient from stress to sleep quality was negative.
压力到睡眠质量的路径系数是负的。

After controlling for age and income, the model showed a significant path coefficient linking social support to life satisfaction.
在控制年龄与收入之后,模型显示社会支持与生活满意度之间的路径系数显著。

Etymology / 词源

path 原意是“道路、路径”,在统计学里借用来指变量之间的“因果/影响路径”;coefficient 来自拉丁语系词根,意为“共同作用的因子/系数”。合起来的 path coefficient 指“某条影响路径上的系数”,用于量化一条路径上变量之间的直接效应。

Related Words / 相关词

Literary Works / 文学与著作中的用例

  • Sewall Wright, The Method of Path Coefficients(1921)
  • Kenneth A. Bollen, Structural Equations with Latent Variables(1989)
  • Rex B. Kline, Principles and Practice of Structural Equation Modeling(多版)
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