Matching With Multiple Control Groups With Adjustment for Group Differences
نویسندگان
چکیده
منابع مشابه
Matching With Multiple Control Groups With Adjustment for Group Differences
When estimating causal effects from observational data, it is desirable to approximate a randomized experiment as closely as possible. This goal can often be achieved by choosing a subsample from the original control group that matches the treatment group on the distribution of the observed covariates. However, sometimes the original control group cannot provide adequate matches for the treatme...
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When estimating causal effects from observational data, it is desirable to replicate a randomized experiment as closely as possible, for example, by obtaining treated and control groups with extremely similar distributions of observed covariates. This goal can often be achieved by choosing a subsample from the original control group that matches the treatment group on the distribution of these ...
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Optimal Pair Matching With Two Control Groups
In an effort to detect hidden biases due to failure to control for an unobserved covariate, some observational or nonrandomized studies include two control groups selected to systematically vary the unobserved covariate. Comparisons of the treated group and two control groups must, of course, control for imbalances in observed covariates. Using the three groups, we form pairs optimally matched ...
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ژورنال
عنوان ژورنال: Journal of Educational and Behavioral Statistics
سال: 2008
ISSN: 1076-9986,1935-1054
DOI: 10.3102/1076998607306078