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首页> 外文期刊>Prevention science: the official journal of the Society for Prevention Research >The Causal Mediation Formula-A Guide to the Assessment of Pathways and Mechanisms
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The Causal Mediation Formula-A Guide to the Assessment of Pathways and Mechanisms

机译:因果调解公式-评估途径和机制的指南

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摘要

Recent advances in causal inference have given rise to a general and easy-to-use formula for assessing the extent to which the effect of one variable on another is mediated by a third. This Mediation Formula is applicable to nonlinear models with both discrete and continuous variables, and permits the evaluation of path-specific effects with minimal assumptions regarding the data-generating process. We demonstrate the use of the Mediation Formula in simple examples and illustrate why parametric methods of analysis yield distorted results, even when parameters are known precisely. We stress the importance of distinguishing between the necessary and sufficient interpretations of "mediated-effect" and show how to estimate the two components in nonlinear systems with continuous and categorical variables.
机译:因果推理的最新进展已经形成了一种通用且易于使用的公式,用于评估一个变量对另一个变量的影响在多大程度上由第三个变量介导。此中介公式适用于具有离散变量和连续变量的非线性模型,并允许以最少的关于数据生成过程的假设来评估特定于路径的效果。我们在简单的示例中演示了中介公式的使用,并说明了即使参数精确已知,参数分析方法为何也会产生失真的结果的原因。我们强调区分“中介效应”的必要解释和充分解释的重要性,并说明如何估计具有连续变量和分类变量的非线性系统中的两个分量。

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