论文部分内容阅读
序贯试验是一种直观、节省样本的试验方法。本文试图用开放型双向序贯试验的方法对学生视力不良的矫治效果进行分析,以探求学生常见病矫治效果分析的方法。 1 观察对象和方法 1985年9～10月,随机抽取济宁市五中双眼裸眼远视力在0.4～0.9,近视力正常,远雾视法阳性的假性近视学生120名做为观察对象。将市售矫治学生近视的3种药液,分别称为甲、乙、丙药。用完全随机的实验设计方法把观察对象随机分为甲、乙两组,每组分别根
Sequential testing is an intuitive, sample-saving test method. This article attempts to analyze the curative effect of poor vision by the open two-way sequential test method, in order to explore the analysis methods of the common disease correction effect. 1 Observing objects and methods From September to October 1985, randomly selected subjects with distance vision ranging from 0.4 to 0.9 in the eyes of the five eyes of Jining City, normal near vision, and 120 positive pseudomyopia students with far sight fog were taken as observation subjects. The three medical liquids that are commercially available to treat students’ myopia are called A, B, and C drugs. Using a completely random experimental design method, the observation objects were randomly divided into two groups, A and B. Each group was divided into two groups.