Not Asked and Not Answered: Multiple Imputation for Multiple Surveys: Rejoinder
نویسندگان
چکیده
منابع مشابه
Asked, Not Answered
There is a general agreement that before a therapy can be accepted into widespread clinical use, demonstration of efficacy in randomized clinical trials (RCTs) is absolutely necessary. There are, however, a growing number of experts who believe that demonstration of RCT efficacy might not be a sufficient basis for widespread acceptance.1 RCTs may not enroll subjects representative of patients i...
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Within-survey multiple imputation (MI) methods are adapted to pooled-survey regression estimation where one survey has more regressors, but typically fewer observations, than the other. This adaptation is achieved through: (1) larger numbers of imputations to compensate for the higher fraction of missing values; (2) model-fit statistics to check the assumption that the two surveys sample from a...
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When some of the records used to estimate the imputation models in multiple imputation are not used or available for analysis, the usual multiple imputation variance estimator has positive bias. We present an alternative multiple imputation approach that enables unbiased estimation of variances and, hence, calibrated inferences in such contexts. First, using all records, the imputer samples m v...
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Multiregional evolution is a model to account for the pattern of human evolution in the Pleistocene. The underlying hypothesis is that a worldwide network of genic exchanges, between evolving human populations that continually divide and reticulate, provides a frame of population interconnections that allows both species-wide evolutionary change and local distinctions and differentiation. "Mult...
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ژورنال
عنوان ژورنال: Journal of the American Statistical Association
سال: 1998
ISSN: 0162-1459
DOI: 10.2307/2669825