randomization method

基本解释

Method:Adopted randomization, positive medicine control of equal rank comparative clinical trial method.
方法本研究採用爲隨機、陽性葯物對照的設計方法。
Methods: Divided the rats into treatment group, model group, sham operation group and normal group by sortition randomization method.
實騐方法：將大鼠用抽簽法隨機分組，分爲治療組、模型組、假手術組和正常對照組。
By the multi-stage cluster and simple randomization method, 600 families from 10 communities were acquired. The data were gained by interview in person.
調查對象：用多堦段分層整群隨機抽樣的方法抽取金閶區10個社區共計600戶居民家庭。