4 papers · 1 filter
Identification, Estimation, and Inference for Sequential Causally Ordered Mediation Pathways
Ritoban Kundu, Canyi Chen, Peter X. K. Song
Mediation analysis plays an essential role in uncovering the mechanisms by which an exposure influences an outcome through intermediate pathways. While methodological advances for…
Copula Structural Equation Models for Mediation Pathway Analysis
Canyi Chen, Ritoban Kundu, Wei Hao +1
Structural equation models (SEMs) are fundamental to causal mediation pathway discovery. However, traditional SEM approaches often rely on \emph{ad hoc} model specifications when h…
Quantile Mediation Analytics
Canyi Chen, Yinqiu He, Huixia J. Wang +2
Mediation analytics help examine if and how an intermediate variable mediates the influence of an exposure variable on an outcome of interest. Quantiles, rather than the mean, of a…
A Class of Directed Acyclic Graphs with Mixed Data Types in Mediation Analysis
Wei Hao, Canyi Chen, Peter X. -K. Song
We propose a unified class of generalized structural equation models (GSEMs) with data of mixed types in mediation analysis, including continuous, categorical, and count variables.…