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Instrumental variables I: instrumental variables exploit natural variation in nonexperimental data to estimate causal relationships

The gold standard of study design for treatment evaluation is widely acknowledged to be the randomized controlled trial (RCT). Trials allow for the estimation of causal effect by randomly assigning participants either to an intervention or comparison group; through the assumption of “exchangeability...

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Bibliografiske detaljer
Main Authors: Rassen, Jeremy A., Brookhart, M. Alan, Glynn, Robert J., Mittleman, Murray A., Schneeweiss, Sebastian
Format: Artigo
Sprog:Inglês
Udgivet: 2009
Fag:
Online adgang:https://ncbi.nlm.nih.gov/pmc/articles/PMC2905668/
https://ncbi.nlm.nih.gov/pubmed/19356901
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1016/j.jclinepi.2008.12.005
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