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常用统计学方法:分类(名义分类或等级分类)资料用χ^2检验、Ridit分析,区间变量均数组问比较用t检査、F检验、秩和检验(适用于呈偏态分布的区间变量)。χ^2检验的适应范围:当总体样本含量(n)>40,理论频数(T)>5时,用χ^2检验的基本公式;若n>40.1<T<5时,用校正χ^2检验。
常用统计学方法常用统计学方法
【摘 要】
：
常用统计学方法:分类(名义分类或等级分类)资料用χ^2检验、Ridit分析,区间变量均数组问比较用t检査、F检验、秩和检验(适用于呈偏态分布的区间变量)。χ^2检验的适应范围:当
【出 处】
：
实用口腔医学杂志
【发表日期】
：
2019年3期
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