生物利用度等效性检验的正规计算,应先用方差分析算出残余误差,再用双向单侧ｔ检验计算两个方向的ｔ值才能作出等效判断,通常要用计算机进行计算。本文根据交叉配对设计两组例数相等的特点,提出一种能用原始数据,直接进行等效性检验的简捷法,两法数学上等价,计算结果完全一致。 Formal calculation of equivalence test of bioavailability, the residual error should be calculated by analysis of variance firstly, and then the t value of two directions can be calculated by two-way one-sided t-test to make the equivalent judgment, which is usually calculated by computer. In this paper, according to the characteristics of equal number of two pairs of cross-pairing design, this paper presents a simple method which can directly test the equivalence using the original data. The two methods are equivalent in mathematics and the results are completely consistent.