本文的主要统计方法为均值比较、重复多因素方差分析。
The statistical techniques performed for analysis were compare means, repeated-measures of MANOVA.
方法：运用s PSS11。0统计分析软件对所取变量进行多因素方差分析和聚类分析。
Methods: The variables were subjected to SPSS11.0 for Windows by multi-factor analysis of variance and cluster analysis.
对所收集的数据，进行统计描述、t检验、多因素方差分析、相关分析和逐步多元回归分析。
The data collected were described and analyzed with statistical description, t-test, analysis of variance, linear correlation and multiple linear regression.
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