Itemwise conditionally independent nonresponse modeling for incomplete multivariate data
Itemwise conditionally independent nonresponse modeling for incomplete multivariate data
复制标题
不完整多元数据的逐项条件独立无响应建模
DOI:
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发表时间:
2016
期刊:
影响因子:
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通讯作者:
Jerome P. Reiter
中科院分区:
文献类型:
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作者:
Mauricio Sadinle;Jerome P. Reiter
We introduce a nonresponse mechanism for multivariate missing data in which each study variable and its nonresponse indicator are conditionally independent given the remaining variables and their nonresponse indicators. This is a nonignorable missingness mechanism, in that nonresponse for any item can depend on values of other items that are themselves missing. We show that, under this itemwise conditionally independent nonresponse assumption, one can define and identify nonparametric saturated classes of joint multivariate models for the study variables and their missingness indicators. We also show how to perform sensitivity analysis to violations of the conditional independence assumptions encoded by this missingness mechanism. Throughout, we illustrate the use of this modeling approach with data analyses.
影响因子:
2
作者:
Robins,JM;Gill,RD
通讯作者:
Gill,RD
影响因子:
2
作者:
Robins,JM
通讯作者:
Robins,JM