元回归中效应量的最小个数需求:基于统计功效和估计精度
方俊燕, 张敏强

What is the minimum number of effect sizes required in meta-regression? An estimation based on statistical power and estimation precision
FANG Junyan, ZHANG Minqiang
附图5 包含一个调节变量时不同效应量个数下的I类错误率