摘要
目的 对多个样本率间的两两比较方法作系统介绍及比较。方法 通过实例介绍了 8种两两比较的方法 ,并比较其检验结果及确切概率值或界值。结果 从其确切概率值来看 ,CPD法较Brunden法及按α″水准判断的方法更易犯Ⅱ型错误 ;从界值来看 ,罗文海法较杜养志法易犯Ⅰ型错误 ;Scheffe法较其他方法更偏于保守。
Objective To describe and compare systematically the multiple comparison of rate.?Method 8 multiple comparisons of rate were described and their exact probabilities or critical values were compared.?Results In terms of exact probability, the CPD method tended to introduce more typeⅡerrors than Brunden method and the method of judging by α″significance level. With regard to the critical value, Luo Wenhai's method was more likely to have typeⅠ errors than Du Yangzhi's method. Scheffe's method was found to be conservative, compared with other methods.?Conclusion The result of each multiple comparison of rate should be interpreted on the basis of practical conditions.
出处
《徐州医学院学报》
CAS
2002年第4期291-294,共4页
Acta Academiae Medicinae Xuzhou
关键词
样本率
两两比较方法
医学统计学
statistics
multiple comparison
significance level
