Sensitivity Analysis in Multiple Imputation for Missing Data
Under the MNAR assumption, the probability that the value of Y is missing for an observation can depend on the unobserved value of Y, pr.R j X;Y/⁄ pr.R j X/ which implies pr.Y j X;R D 0/⁄ pr.Y j X;R D 1/ For example, suppose the data in a clinical trial contain an indicator variable Trt, which has a value of 1 for patients in the treatment group and a value of 0 for patients in the control ...
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