Nonparametric estimation of heterogeneity variance for the standardised difference used in meta-analysis
元分析中标准化差异的异质性方差非参数估计
The standardised difference has become a frequently used measure of the effect of interest in meta-analysis. Given population heterogeneity, we propose a nonparametric moment estimator for the heterogeneity variance in the corresponding random effects model. The advantages of this approach are threefold. First, it recognises that the specific variances for the individual studies themselves are given in the form of estimates. Secondly, the simple structure of a moment…