Rerandomization to improve covariate balance in experiments
نویسندگان
چکیده
منابع مشابه
Haphazard Intentional Allocation and Rerandomization to Improve Covariate Balance in Experiments
In randomized experiments, a single random allocation can yield groups that differ meaningfully with respect to a given covariate. Furthermore, it is unfeasible to control the allocation with respect to a moderate number of covariates. As a response to this problem, Morgan and Rubin [1, 2] proposed an approach based on rerandomization to ensure that the final allocation obtained is balanced. Ho...
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This thesis contributes to the field of causal inference, where the main interest is to estimate the effect of a treatment on some outcome. At its core, causal inference is an exercise in controlling for imbalance (differences) in covariate distributions between the treated and the controls, as such imbalances otherwise can bias estimates of causal effects. Imbalance on observed covariates can ...
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ژورنال
عنوان ژورنال: The Annals of Statistics
سال: 2012
ISSN: 0090-5364
DOI: 10.1214/12-aos1008