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区分度
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  dipartite degree
     According to the latent trait theory and dipartite degree, this paper presents the method of the foundation and realization of the mathematics model for difficulty coefficient.
     作者以潜在倾向理论为基础 ,结合区分度算法 ,提出了一种试题难度系数数学模型的建立和实现方法 .
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  “区分度”译为未确定词的双语例句
     the item discrimination of the scale ranged from 1.0027-1.6671;
     ②条目区分度1.0027-1.6771。
短句来源
     Results The degree of difficulty reached the idealvalues (the value for city being 0.62, 0.58 for rural area); the different degree was very good (rpb > 0.195, P < 0.05),80% of the testing questions had a distinguishing index D > 0.2, the reliability was very high(correlation coefficientrtt= 0.91), and the validity was ideal.
     结果试题的难度达到理想值(城市为0.62,农村为0.58),区分度较好(rpb>0.195,P<0.05),鉴别指数D>0.2的测试题占80%,复测信度高(相关系数rtt=0.91),构想效度较高。
短句来源
     The average of exponent D in distinction degree was(0.2934) and the standard deviation was(0.1193).
     区分度指数D的平均数为0.2934,标准差为0.1193。
短句来源
     The results showed that the 2×2 Table provided a simple and effective method for the calculation and test of validity, reliability, objectivity and topical discrimination.
     结果表明:2×2列联表为效度、信度、客观性及题目的区分度的估价和检验提供了简单而有效的方法;
短句来源
     a、B and C are the parameters to describe the characteristics of questions: a—difficulty, b—separating capacity, c—guess right parameter.
     a、b和c是描述试题特征的参数,分别代表试题的难度、区分度和准猜测参数。
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  相似匹配句对
     Discriminability Analysis of Translation Evaluation
     翻译评价方法的分度分析
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     Analysis of Item Difficulty and Item Discrimination of AIDS Knowledge Questionnaire
     大学生艾滋病知识问卷的难度及分度分析
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     Culture Region
     文化
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     Northwest China.
     西北
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     Pluridentate Dividing Set
     多齿分度
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  differentiation index
HL-60 cells have been induced with differentiation index 16% by S-adenosyl-L-methionine (SAM) as inducer in the presence of optimum concentration of 10 pmol/L.
      
Maximum abundances of K, Rb, Ba, Pb, and Sr occur in the intermediate syenitic differentiates (differentiation index=64.0-68.8).
      
The manganese content of manganoan ilmenite increases with an increase of the differentiation index of host rocks, however, the amount of ilmenite tends to decrease with the increase of the same index.
      
the differentiation index Al2O3+CaO+MgO show a gap between troctolite and anorthosite in the Morin Complex whereas this gap is absent in the anorogenic complexes of Labrador (Nain province).
      
Co and Sc range respectively between 19.6-1.2 ppm and 32-3.3 ppm showing a good negative correlation with the Differentiation Index (D.I.).
      
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The educational statistical analysis of the terminal examination of Anatomy for freshmen in 1983 has been made in our school The examinational coefficient of reality(r)was 0.96.We deemed that this examination could basically reflect the true level of studeuts'learning.

本文对我校八三级人体解剖学期末考试201份试卷用教育统计学指标进行了分析。试题分六个类型共57小题,总平均成绩76.6±11.52分,其变异系数为12.2,范围在43.5~97.5分,难度适中试题占80%,区分度极好和良好者占90%,考试基本能反映学生的真实水平。针对考试和教学中存在的问题进行了分析,拟定了措施。认为应开展对命题的研讨,教师应加强学生的自学、综合分析能力的培养以及改进教学方法和提高教学效果是非常必要的。

The Wechsler Preschool and Primary Scale of Intelligence (WPPSI)was revised according to the cultural background of Chinese children.This new version is called the China-Wechsler Younger Children Scale ofIntelligence (C-WYCSI). Three subtests and the two-thirds items ofWPPSI were replaced. C-WYCSI consists of two sets of norms, one is madeup of urban children (N=2200) and another is made up of rural children(N=1120). The following psychometrical characteristics of the scale are considered: most floors of the...

The Wechsler Preschool and Primary Scale of Intelligence (WPPSI)was revised according to the cultural background of Chinese children.This new version is called the China-Wechsler Younger Children Scale ofIntelligence (C-WYCSI). Three subtests and the two-thirds items ofWPPSI were replaced. C-WYCSI consists of two sets of norms, one is madeup of urban children (N=2200) and another is made up of rural children(N=1120). The following psychometrical characteristics of the scale are considered: most floors of the subtests of this new scale were improvedbut some of the ceilings worsened. The average of reliability coefficientof the subtests are 0.79 (urban) and 0.83 (rural), the stability coeffic-ient of IQ are from 0.82 to 0.89 and the coefficient of correlation ofIQ on the C-WYCSI with IQ on the WPPSIa are from 0.786 to 0.878.

本文介绍了中国-韦氏幼儿智力量表(C-WYCSI)的编制情况。C-WYCSI是以WPPSI为蓝本编制,包括城市常模(N=2200人)和农村常模(N=1120人)。作者从心理测量学角度对常模的构成、测验项目的筛选及上下限、信度和效度等问题进行了分析与讨论。结果提示:尽管C-WYCSI改变很大,但项目的难度和区分度是较满意的;城市常模的测验下限明显改善,但上限不及原量表;各种信度均达到测量学认可的水平;效度研究结果表明:C-WYCSI较好地保持了WPPSI的功能。

This thesis expounds the construct-ing of the Chinese Reading AchievementScale for third year students in juniormiddle school.We format the scale andadministered it to the general middleschool standard samples in GuangZhou.The results show that its diffi-culty is appropriate,its discriminationis rather good,and its reliability andvalidity are relatively high.It is suit-able for measuring the level of Chi-nese reading for third year students injunior middle school.

本研究介绍了初中三年级《语文阅读水平量表》的编制情况。我们编制了这个量表,用它对广州市完全中学标准化样本进行测试,结果表明,该量表难度恰当,区分度较好,信度效度较高,适合完全中学初三级作为测量语文阅读水平的量具.

 
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