Methods: A quasi - experimental design with a control trial.

方法: 本研究设计含实验组与控制组.

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The thesis adopted single factor, two level and equal group quasi - experimental research methods.

本研究采用的是“单因素两水平等组”准实验研究方法.

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The research method used for system assessment is quasi - experimental design. The experiment adopts nonequivalent - control group design.

本研究所利用系统评估的研究方法为准实验研究, 实验设计采不等组前测-后测设计.

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