精神医学中的生物统计学(2) 连续性结果测量的效应度

Biostatistics in psychiatry(2) Effect size for continuous outcome measures

我们在上一期栏目中已经讨论了效应度是评估治疗效果的重要指标[1]。接下来我们讨论几种广泛使用的方法来计算连续性结果测量值的效应度（以后将讨论二分结果测量值的效应度）。

As we discussed in our previous column,effect size is an important benchmark for the evaluation of treatment effects. We discuss below several widely used effect size measures for continuous outcome measures. （Effect sizes for dichotomous outcome measures will be discussed in a future column. ）