临床试验适应性设计的反应变量-适应性随机化方法简介

CHINESE JOURNAL OF HEALTH STATISTICS(2008)

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Abstract
所谓随机化是指试验设计中,将处理以一定的概率(机会)分配给观察单位,它是控制偏倚的基本手段之一,是得到正确统计推断的基础.常用的随机化方法大体可分为四种类型[1]:
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