什么是随机机分组随机是选择的反面。随机分组在临床研究里用来比较两个治疗方案(有时比较三个方案,但避免很多方案同时比较)。以往多先将病人分成两组,一组用A法治疗,另一组用B法治疗,分配人入那一组有随机的和不随机的。随机分组是按一定的分配方法进行,其特点是不由医生亦不由病人选择;抽签决定就是一种随机分组法。随机的目的是 What is random machine grouping random is the opposite of choice. Randomization was used in clinical studies to compare two treatment regimens (sometimes comparing three regimens, but avoiding many regimens at the same time). In the past, patients were first divided into two groups. One group was treated with the A method, the other group was treated with the B method, and the assigned group was randomized and not randomized. Randomization is performed according to a certain allocation method. Its characteristic is that it is not selected by the doctor or the patient. Lottery decision is a random grouping method. The purpose of randomness is