A behind-the-scenes blog about research methods at Pew Research Center. For our latest findings, visit pewresearch.org. Identifying causal relationships from observational data is not easy. Still, ...
https://doi.org/10.15609/annaeconstat2009.134.0243 • https://www.jstor.org/stable/10.15609/annaeconstat2009.134.0243 Copy URL This paper shows how the correlated ...
Longitudinal data in biomedical studies often involve concomitant interventions in addition to the pre-specified repeatedly measured outcome and covariate variables. Since a concomitant intervention ...
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