Imputing continuous data under some non-Gaussian distributions

被引:13
作者
Demirtas, Hakan [1 ]
Hedeker, Donald [1 ]
机构
[1] Univ Illinois, Div Epidemiol & Biostat MC923, Chicago, IL 60612 USA
关键词
multiple imputation; normality; symmetry; skewness; kurtosis;
D O I
10.1111/j.1467-9574.2007.00377.x
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
There has been a growing interest regarding generalized classes of distributions in statistical theory and practice because of their flexibility in model formation. Multiple imputation under such distributions that span a broader area in the symmetry-kurtosis plane appears to have the potential of better capturing real incomplete data trends. In this article, we impute continuous univariate data that exhibit varying characteristics under two well-known distributions, assess the extent to which this procedure works properly, make comparisons with normal imputation models in terms of commonly accepted bias and precision measures, and discuss possible generalizations to the multivariate case and to larger families of distributions.
引用
收藏
页码:193 / 205
页数:13
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