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Type I Error Rates of the Kenward-Roger F-test for a Split-Plot Design with Missing Values and Non-Normal Data
被引:0
|作者:
Padilla, Miguel A.
[1
]
Min, YoungKyoung
[2
]
Zhang, Guili
[3
]
机构:
[1] Old Dominion Univ, Quantitat Psychol, Norfolk, VA 23529 USA
[2] Korea Fdn Adv Sci & Creat, Seoul, South Korea
[3] East Carolina Univ, Res & Evaluat Methodol, Greenville, NC 27858 USA
关键词:
missing values;
Kenward-Roger F-test;
robustness;
mixed models;
split-plot design;
non-normal data;
and covariance heterogeneity;
D O I:
暂无
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:
The Type I error of the Kenward-Roger (KR) F-test was assessed through a simulation study for a between-by within-subjects split-plot design with non-normal ignorable missing data. The KR-test for the between- and within-subjects main effect was robust under all simulation variables investigated and when the data were missing completely at random (MCAR). This continued to hold for the between- subjects main effect when data were missing at random (MAR). For the interaction, the KR F-test performed fairly well at controlling Type I under MCAR and the simulation variables investigated. However, under MAR, the KR F-test for the interaction only provided acceptable Type I error when the within-subjects factor was set at 3 and 5% missing data.
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页码:385 / 397
页数:13
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