来稿中统计数据处理最常见的错误之一是对多个样本均数进行比较时 ,采用t检验代替方差分析。t检验只适用于检验两个样本均数间有无差别 ,采用t检验对多组均数进行两两比较或多组均数与对照组比较 ,结果会产生较大的误差 ,增大了犯α错误的概率 ,即可能把本来无差异的两个总体均 One of the most common errors in the processing of statistical data in submissions is when multiple samples are compared and t-tests are used instead of analysis of variance. The t-test is only suitable for testing whether there is a difference between the two sample means. Using the t-test to compare two or more groups of means means or multiple groups of means with the control group, the result will produce a larger error, increasing the number of The probability of an alpha error, that is, the two populations that may have no difference