模型结构采用AIC准则法和逐步回归筛选法综合确定，模型参数采用最小二乘法估计。
The model structure is determined by AIC and stepbystep regression arithmetic, parameters of the model are estimated by the least square method.
通过对调查结果进行离散趋势分析、因子分析、逐步回归分析、判别分析法和克朗巴赫系数法等分析方法筛选条目。
Select the items through the discrete trend analysis, factor analysis, stepwise regression analysis, discriminant analysis and Crowns Bach coefficient method to the survey result.
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