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    2. The result of item analysis shows that most of the index of item discrimination were above 0.2.
    2、项目分析结果表明,各项目的鉴别力指数在0.2以上,区分度较好。
    (3)Analyzing discriminator, reliability and validity of the scale.
    (3)对正式问卷进行了项目区分度、信度和效度分析。
    and the average item discriminations are respectively 0.34, 0.31 and 0.30; most of the item discriminations are more than 0.3 and the item discriminations of all the items are statistically significant.
    平均区分度分别为低年级0.34,中年级0.31,高年级0.30,大多数项目区分度在0.3以上,所有项目的区分度均达显著性水平。
    Classical Test Theory (CTT) has many defects,namely the estimations of its parameters depend on the subjects,the estimation of ability level depends on the items,and it offers only average precision of estimation.
    经典测验理论 (CTT)的主要缺点有 :对测题难度、区分度及测验信度的估计依赖于被试组 ,对被试能力的估计依赖于所使用的测验题目 ,只提供平均测量精度等 .
    Results 148 items whose discrimination index was less than 0.2 were deleted in the item analysis.
    结果 项目分析删去 14 8个区分度 <0 .2的项目。
    Our survey was conduced of 486 individuals, and the results showed: (1) the discrimination index of 81. 3 % of the items were above 0.30, showing a good discriminability;
    对486名被试进行了测试,统计分析的结果表明:(1)81.3%的测验项目其区分度在0.30以上,显示出了良好的鉴别力;
    Results The overall difficulty of the test was 0.603 , the total discrimination of all items were ~0.441. There were middle or lower coefficients of correlation between the subsales (0.211~0.431), but the coefficients of correlation between the subscales and the overall scores were higher (0.803~0.927).
    结果测验总体难度为0.603,试题的总区分度为0.441; 各分量表间存在中度、低度相关(r=0.2110~0.431),各量表与总分的相关较高(r=0.803~0.927);
    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。
    113 normal children in grade 3-5 are tested in study one using CCLD, and the results show that CCLD has good reliability, validity, difficulty level and discrimination.
    研究一将CCLD测验在113名3-5年级普通小学生群体中进行了试测,结果表明它具有良好的信度、效度、难度和区分度指标。
    Review the Test-retest Reliability and Each Item's Discrimination of Temperament Scale Developted by
    对张拓基、陈会昌气质类型测验量表的复测信度及各题目区分度的考查
    A RESEARCH ON THE COMPUTER- SIMULATION TEST VALIDITIES OF DISCRIMI-NATION DISTRIBUTION AND DIFFICULTYDISCRIMINATION
    区分度和难度分布在测验效度上的效应比较的模拟试验研究
    Effect of Discriminability on Interference Between Facial Expression and Facial Identity Recognition
    区分度在面部表情与面孔身份识别交互中的作用
    This study figures out the coefficient of correlation between the scores of the items and the scores of the sub-scales, and taking the 0.001 as the significant level of selecting items, we delete 13 items and compose the new scale with the remnant 80 items.
    预测的有效样本人数为170人。 对预测资料进行卷项目分析时,以项目得分与分量表总分的相关系数作为估计项目区分度参数的指标,采用0.001的显著性水平为筛选项目的标准,共删去13个项目,余80个项目形成新的学业负担态度问卷。
    2A2 item analysisIn order to inspect the Quality of the items in the bigger sample, This study work out the discrimination and popularity on the test scores of the sample of thel 902. In according to the relating standard delete 11 items and gain 69 valid items. 24.3 factor analysis
    2.4.2项目分析为了在大样本的范围内考察项目的质量,以1902名被试的测验原始分数为基础计算了各个项目的通俗度和区分度,据此删去 11个项目,得到 69个有效项目。
    The result of the item analysis of the pretest questionnaire bespeaks that most of the items adopted by the retest questionnaire have high quality, the discrimination indexes of them above . 20, and be regarded as qualified by the experts.
    初测问卷的项目分析结果表明,进入复测问卷的绝大多数项目均具有较高的质量,区分度指数在20以上,专家评定合格;
    1. Scaling: Settle the construction of the scale, set its item treasury based on the work analysis of software-developing personnel, then sift and settle items by using the experience mode and the conventional item analyzing technology (such as differential validity technology) simultaneously while taking into account expert assessment
    方法:1、量表的编制:在对软件开发人员进行工作分析的基础上,确定量表结构,建立本量表的项目库,采用经验法与传统的项目分析技术(如区分度技术)相结合的方式,结合专家评定进行项目筛选,确定项目。
    It also indicates that, the test project of the system is satisfied to the demands of psychological measurementology with marked reliability and validity by the results of experimental test and statistical analysis.
    根据该分类系统编制的一套创造性思维加工策略测试方案,经施测和统计分析,此测验具有一定的信度、效度、区分度,符合心理测量学要求。
    2. The questionnaire consisting of the 8 sub-scales and 71 items is of great homogeneity reliability, item discrimination, construct validity, and empirical validity. It can serve as the quantitative assessment of the factors influencing the trait anxiety of college students, and a starting point of relevant research.
    2.由8个分问卷71个项目构成的“大学生特质焦虑影响因素问卷”具有很高的同质性信度和项目区分度,具有良好的构想效度和效标效度,可以用于对大学生特质焦虑影响因素的定量评定,并开展相关研究。
    The test is testified by difficulty, index of discrimination all accord with the command of common diagnosis test.
    本测验经过实测数据的验证,难度、区分度符合一般诊断性测验的要求。
    The results of items analysis showed that average difficulty of all tests were from 0. 47 to 0. 54, the range of index of items discrimination were over 0.20. The distraction analysis pointed out that incorrect choices of 63. 9%~88. 8% items had good distraction.
    从结果得知,各测验的平均难度在0.47~0.54,平均区分度用鉴别指数法和点二列相关法计算均大于0.2;
 

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