摘要
本文介绍基于均差估值的二变量Meta-分析的未知不相等方差模型,通过极大似然估计法给出效应量及方差估计,进而得到各研究均值效应量协方差矩阵的估计量。然后,通过基于均差效应量二变量Meta-分析的固定效应模型给出了合并均差统计量Doverall的具体形式和权重。进而得到了Doverall的协方差矩阵和两个变量的(1-α)100%置信区间。
This paper introduces the unknown unequal variance model of bivariate meta-analysis based on the difference mean;we obtain the maximum likelihood estimator of the difference mean effect and unknown variances. Then we find the combining overall difference mean effect Doverall by the fixed-effect model of bivariate Meta-analysis based on the difference mean. Moreover, we obtain the corresponding covariance matrix and the (1-α)100% confidence interval for the overall dif-ference mean effect Doverall.
出处
《运筹与模糊学》
2019年第1期72-79,共8页
Operations Research and Fuzziology
基金
国家自然科学基金(61871475, 61471133, 61571444, 61473331)
广东省科技计划(2017B010126001, 2017A070712019, 2016A040402043, 2015A070709015, 2015A020209171, 2016B010125004, 2014B040404070, 2015A040405014, 2016A070712020)
广东省教育厅科技计划 (2017GCZX001, 2016GCZX001, 2017KTSCX094, 2017KTSCX095, 2017KQNCX098)
广州市科技计划 (201707010221)。
