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儿童的动作发育存在明显的个体差异,而我国地域辽阔,自然条件、人民生活习惯各异,均将影响儿童的动作发育。因此,有必要用较精确的方法评价儿童动作发育。本文就使用概率单位回归法,评价儿童动作发育的原理和方法,加以说明和讨论。 基本原理 将年龄换算成对数值,将每种动作发育频率换算成概率单位,使动作发育的长尾“S”型曲线直线化,再按照模型y=a+bx建立直线回归方程。在此基础上,可进一步求出每种动作发育的平均发生时间、95％正常值范围及95％可信区间
There are obvious individual differences in the development of children’s movements. However, the vast territory, natural conditions and people’s living habits in our country will affect the children’s movements and development. Therefore, it is necessary to use more accurate method to evaluate children’s motor development. In this paper, the use of probability units of regression, evaluation of the principles and methods of child development, to illustrate and discuss. The basic principle is to convert the age into a logarithmic value, convert the frequency of each action development into a unit of probability, and linearize the long-tail “S” curve of action development, and then establish the linear regression equation according to the model y = a + bx. On this basis, we can further find the average time of occurrence of each action, 95% of the normal range and 95% confidence interval