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一些调查结果表明,城市中的中小学校受环境噪声的干扰严重,尤其是交通噪声。我们对不同噪声级(40至70dBA)下学生课堂行为作了一系列的心理学实验,和汉语清晰度测验。所得结果经单因子方差分析和t检验来考核(用高级统计软件RDAS)不同结果之间差异的显著性,从而可得出当噪声级L_(eq)超过50dBA,或是L_(10)>55dBA,L_(50)>50dBA时,学生课堂行为会出现显著性差异(P<0.05)。另外还利用RBAS软件进行了皮尔逊(简单)相关分析,了解到上述心理学实验各作业指标之间的相关性并不很大,说明大部分作业不能相互替代,选择这些作业是必要的。本研究结果表明,教室内最大容许噪声级定为L_(10)=55dBA,L_(50)=50dBA是合适的。
Some survey results show that primary and secondary schools in cities are seriously disturbed by environmental noise, especially traffic noise. We conducted a series of psychological experiments on students’ classroom behavior at different noise levels (40 to 70 dBA), and Chinese Clarity Test. The results were evaluated by one-way ANOVA and t-test to assess the significance of the differences between the different results (using the high-level statistical software RDAS), so that when the noise level L eq exceeds 50 dBA or L 10 10> 55 dBA, , L_ (50)> 50dBA, there was a significant difference (P <0.05) in the class behavior of students. In addition, Pearson (simple) correlation analysis was conducted by using RBAS software. It was found that there was not much correlation between each operation index in the above psychology experiment, which indicated that most of the jobs could not be replaced by each other, and it was necessary to select these jobs. The results of this study show that the maximum allowable noise level in the classroom is L_ (10) = 55dBA and L_ (50) = 50dBA is appropriate.