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Multisite causal mediation analysis using the methods proposed by Qin and Hong (2017) <doi:10.3102/1076998617694879>, Qin, Hong, Deutsch, and Bein (2019) <doi:10.1111/rssa.12446>, and Qin, Deutsch, and Hong (2021) <doi:10.1002/pam.22268>. It enables causal mediation analysis in multisite trials, in which individuals are assigned to a treatment or a control group at each site. It allows for estimation and hypothesis testing for not only the population average but also the between-site variance of direct and indirect effects transmitted through one single mediator or two concurrent (conditionally independent) mediators. This strategy conveniently relaxes the assumption of no treatment-by-mediator interaction while greatly simplifying the outcome model specification without invoking strong distributional assumptions. This package also provides a function that can further incorporate a sample weight and a nonresponse weight for multisite causal mediation analysis in the presence of complex sample and survey designs and non-random nonresponse, to enhance both the internal validity and external validity. The package also provides a weighting-based balance checking function for assessing the remaining overt bias.
| Version: | 0.0.4 |
| Depends: | lme4, statmod, psych, MASS, ggplot2 |
| Published: | 2021-09-05 |
| DOI: | 10.32614/CRAN.package.MultisiteMediation |
| Author: | Xu Qin, Guanglei Hong, Jonah Deutsch, and Edward Bein |
| Maintainer: | Xu Qin <xuqin at pitt.edu> |
| BugReports: | https://github.com/Xu-Qin/MultisiteMediation/issues |
| License: | GPL-2 |
| URL: | https://github.com/Xu-Qin/MultisiteMediation |
| NeedsCompilation: | no |
| In views: | CausalInference |
| CRAN checks: | MultisiteMediation results |
| Reference manual: | MultisiteMediation.pdf |
| Package source: | MultisiteMediation_0.0.4.tar.gz |
| Windows binaries: | r-devel: MultisiteMediation_0.0.4.zip, r-release: MultisiteMediation_0.0.4.zip, r-oldrel: MultisiteMediation_0.0.4.zip |
| macOS binaries: | r-release (arm64): MultisiteMediation_0.0.4.tgz, r-oldrel (arm64): MultisiteMediation_0.0.4.tgz, r-release (x86_64): MultisiteMediation_0.0.4.tgz, r-oldrel (x86_64): MultisiteMediation_0.0.4.tgz |
| Old sources: | MultisiteMediation archive |
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