中国西部科技
中國西部科技
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SCIENCE AND TECHNOLOGY OF WEST CHINA
2015年
4期
94-95,98
,共3页
大学英语四级考试%多元线性回归%预测模型%显著性检验
大學英語四級攷試%多元線性迴歸%預測模型%顯著性檢驗
대학영어사급고시%다원선성회귀%예측모형%현저성검험
College English Test Band 4%Multiple Linear Regression%Prediction Model%Significance Test
通过选取东南大学120名本科生英语成绩,以全国英语四级考试成绩为因变量,以学生大学英语课程期末考试成绩为自变量,构建多元线性回归数学模型,并得到了回归系数的数值。对回归模型以及回归系数的显著性检验表明本科生大学英语课程学习成绩与CET-4成绩具有高度的相关性。最后,根据已建立的预测模型方程预测出120个样本的CET-4成绩与其实际成绩进行对比发现,两项成绩基本吻合,这也进一步表明了预测模型的准确性。
通過選取東南大學120名本科生英語成績,以全國英語四級攷試成績為因變量,以學生大學英語課程期末攷試成績為自變量,構建多元線性迴歸數學模型,併得到瞭迴歸繫數的數值。對迴歸模型以及迴歸繫數的顯著性檢驗錶明本科生大學英語課程學習成績與CET-4成績具有高度的相關性。最後,根據已建立的預測模型方程預測齣120箇樣本的CET-4成績與其實際成績進行對比髮現,兩項成績基本吻閤,這也進一步錶明瞭預測模型的準確性。
통과선취동남대학120명본과생영어성적,이전국영어사급고시성적위인변량,이학생대학영어과정기말고시성적위자변량,구건다원선성회귀수학모형,병득도료회귀계수적수치。대회귀모형이급회귀계수적현저성검험표명본과생대학영어과정학습성적여CET-4성적구유고도적상관성。최후,근거이건립적예측모형방정예측출120개양본적CET-4성적여기실제성적진행대비발현,량항성적기본문합,저야진일보표명료예측모형적준학성。
Based on the English examination scores of 120 undergraduate students of Southeast University, a regression model of test achievement evaluation was established after the index was quantified. Used the students' scores for College English Test Band 4 (CET-4) as the dependent variable and students’ final exam performance of college English course as the independent variable, the mathematical model of multiple linear regression was established, and the regression coefficient values were obtained. The regression model and the coefficients significance test showed that the final exam scores of college English course and CET-4 scores have a significant correlation. At last, we predicted 120 samples’ CET-4 scores based on the established prediction model equation, and by comparing the prediction scores with the actual scores we found that those two scores are basically in agreement, which further showed that our prediction model was very accurate.