| 难度系数评分法 |
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| 引用本文： | 马建华.难度系数评分法[J].大学数学,2001,17(1):16-19. |
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| 作者姓名： | 马建华 |
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| 作者单位： | 淮北煤炭师范学院,数学系,安徽,淮北,235000 |
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| 摘 要： | 本文运用概率统计的理论导出难度系数的计算公式 :D (x) =0 .1Φ- 1(x* ) + 0 .5,进而给出以此公式的计分公式 T =aΦ- 1(x* ) + b,此公式可广泛用于各种综合评价的场合
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| 关 键 词： | 难度系数 综合评价 正态分布 |
| 文章编号： | 1007-4120(2001)01-0016-04 |
| 修稿时间： | 2000年5月29日 |
A Method of Appraising Coefficient of Difficulty |
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| MA Jian,hua.A Method of Appraising Coefficient of Difficulty[J].College Mathematics,2001,17(1):16-19. |
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| Authors: | MA Jian hua |
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| Abstract: | By using theory of Probability and Statistic, this paper conclud a formula to calculate coefficient of difficulty: D(x)=0 1Φ -1 (x *)+0.5 , and as following present a formula of mark: T=aΦ -1 (x *)+b . The formula can be used at many stages of synthetic appraise. |
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| Keywords: | coefficient of difficulty synthetic appraise normal distribution |
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