论文部分内容阅读
1、前言x~2法多用于计量值以外的临床资料的分析。x~2法是英国统计学家 Karl Pearson 在本世纪初所开创的一种统计检验法。不过因为当时还没有统计检验论的研究,该方法是没有考虑检出力(将有效果的某药判断为无效而对社会上给与较大损失的第二种错误的研究)所创没的方法,所以 x~2法的实用方面问题很多。本文根据下列三个观点讨论 x~2法的各种问题,建议用累积法代替 x~2检验。
1 Foreword The x ~ 2 method is mostly used for the analysis of clinical data beyond the measurement value. The x ~ 2 method is a statistical test initiated by British statistician Karl Pearson at the beginning of this century. However, because there were no statistical tests for the time being, the method was not created by examining the power of detection (the second error in judging the effect of a drug as ineffective and giving larger losses in society) Method, so x ~ 2 practical aspects of the problem a lot. This article discusses the various problems of the x ~ 2 method according to the following three points of view. It is suggested that the cumulative method should be used instead of the x ~ 2 test.