【摘要】 简要介绍教学质量评价指标数据变换的目的与主要内容,对数据变换中的统计分布问题进行探讨,在对各种数据变换方法进行比较的基础上,认为标准差法能够将分布各异的原始数据变换成统一的标准正态分布的标准化数据,是一种比较科学合理的数据变换方法。更多还原

【Abstract】 The paper briefly introduces the aims and main contents of index data transformation in teaching quality evaluation,discusses statistic distribution problems in data transformation.Based on the comparison among various data transformation methods,it generates a conclusion that standard deviation method would make different original data transform into standardized data which has unified standard normal distribution,it is a scientific and rational data transformation method.更多还原