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首先对影响南水北调工程项目延期和超支的关键因素进行了问卷调查,利用SPSS统计软件对其信度进行了检验。在确保问卷可靠性的基础上,对所涉及的诸多影响因素进行了影响严重程度评价和排序,同时利用Cox-Stuart趋势增长检验方法进行了检验,得到对南水北调工程超支和延期影响均很严重的前6项关键因素,并针对其中两项提出了相关的政策性建议。另外,还利用Pearson相关系数法对延期与超支之间的相关性进行了检验,充分证明了延期与超支之间存在很强的相关性。
First of all, the key factors influencing the extension and overrun of the South-to-North Water Diversion Project were surveyed and the reliability of the project was tested by SPSS statistical software. On the basis of ensuring the reliability of the questionnaire, many influential factors involved were evaluated and ranked in terms of severity of severities. At the same time, Cox-Stuart trend growth test was used to test the impact on overrun and extension of South-to-North Water Diversion Project The first six key factors, and for two of them made the relevant policy recommendations. In addition, Pearson correlation coefficient was also used to test the correlation between extension and overdraft, which proves that there is a strong correlation between extension and overruns.