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malprogress

金虫 (小有名气)

[求助] 求翻译

Interestingly, listwise deletion can produce unbiased estimates of regression slopes under
any missing data mechanism, provided that missingness is a function of a predictor variable and not the outcome variable (Little, 1992). This relatively esoteric scenario is the only situation in which listwise deletion is likely to outperform maximum likelihood estimation and multiple imputation with missing not at random (MNAR) data.
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8814402

至尊木虫 (职业作家)

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malprogress(金币+5, 翻译EPI+1): 谢谢,纠结的地方想通了。 2011-08-25 15:47:59
有趣的是,如果缺失是一个预测变量而非结果变量的函数,则删除法可以得到任何缺失数据机制下回归斜率的无偏估计。这一相对难懂的场景是删除法可能在非随机数据处理上优于最大似然估计和多重插补法的唯一情形。
2楼2011-08-25 15:11:36
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