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An, Weihua – Sociological Methods & Research, 2023
In this article, I present a new multivariate regression model for analyzing outcomes with network dependence. The model is capable to account for two types of outcome dependence including the mean dependence that allows the outcome to depend on selected features of a known dependence network and the error dependence that allows the outcome to be…
Descriptors: Multivariate Analysis, Regression (Statistics), Models, Correlation
Opening the Blackbox of Treatment Interference: Tracing Treatment Diffusion through Network Analysis
An, Weihua; VanderWeele, Tyler J. – Sociological Methods & Research, 2022
Causal inference under treatment interference is a challenging but important problem. Past studies usually make strong assumptions on the structure of treatment interference in order to estimate causal treatment effects while accounting for the effect of treatment interference. In this article, we view treatment diffusion as a concrete form of…
Descriptors: Outcomes of Treatment, Smoking, Prevention, Intervention
An, Weihua – Sociological Methods & Research, 2016
One interesting idea in social network analysis is the directionality test that utilizes the directions of social ties to help identify peer effects. The null hypothesis of the test is that if contextual factors are the only force that affects peer outcomes, the estimated peer effects should not differ, if the directions of social ties are…
Descriptors: Peer Relationship, Social Networks, Statistical Analysis, Network Analysis