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项目区分度
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  item discrimination
     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。
短句来源
     A total of 278 nursing practicing students from 6 colleges were tested by cluster sampling and the items were re-screened by such indexes as item discrimination, response analysis, relative analysis, factors analysis, Cronbach coefficient α and so on.
     整群抽取6所院校共计278名毕业实习本科护生进行测试,通过项目区分度、反应度分析、相关分析、因子分析、Cronbachα系数等统计指标对条目进行再筛选。
短句来源
  item differentiation
     Method One hundred and ninety-eight employees were randomly selected from a factory to fill out WAI-R. Item differentiation analysis,principal component analysis and factor analysis,as well as intra-item reliability,were used for evaluating social function dimensionality of WAI-R. Result Totally,165 questionnaires were reclaimed and 134 of them were valid.
     方法 随机抽取某厂 198名在职职工填写WAI R量表 ,回收量表 165份 ,有效量表 134份 ,采用项目区分度分析、主成分因子分析和同质性信度检验对WAI R量表社会功能维度进行评价。
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  “项目区分度”译为未确定词的双语例句
     CONCLUSION: 16PF in military personnel shows well differentiation, reliability and validity, and there are obvious developmental characteristics in gender, service year and military rank in personality of military personnel by 16PF.
     结论:16PF在军人群体中有较好的信度、效度和项目区分度,军人16PF的常模样本存在性别、军龄和级别特征.
短句来源
     (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。
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     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。
短句来源
     The test structure of the primary students' writing creativity test is based on same abilities structures writing.
     结果表明,该测验的项目区分度好,信效度高,科学性较好,所以正式测验保持预试时的测验内容,由28题组成小学生写作能力正式测验。 由6题组成写作创造力测验。
短句来源
     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。
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  相似匹配句对
     PROJECT
     项目
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     Thediscriminator of items are upon . 4, the reliability is from .
     所有项目分度都在0.4 以上,信度在.
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     Project Database
     项目
短句来源
     (3)Analyzing discriminator, reliability and validity of the scale.
     (3)对正式问卷进行了项目分度、信度和效度分析。
短句来源
     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个分度 <0 .2的项目
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  item discrimination
8 items with poor item difficulty, lower item discrimination, or having big effect on the item consistency were removed from the instrument, and 62 questions were kept for the further evaluation.
      
The table provides a ready means of translating the observed proportions of success in the two extreme groups (pH,pL) into measures of item difficulty and item discrimination (p, Δ, andr).
      
While negligible differences in the limen values were found, differences in item discrimination indices indicated that interpretation of these indices requires separate frames of reference.
      
The first centroid factor loadings obtained from various interitem relations are compared with item discrimination indices commonly used in item analysis.
      
Note on use of extreme criterion groups in item discrimination analysis
      
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The study analysized the effects of the ltem parameter upon the a

本文运用 SIMU 软件包对项目参数值对 X 系数的影响进行了研究。结果表明,项目区分度 a,项目难度 b,项目猜测度参数 c 的变化对α系数有较大影响,从而对测验的编制提供了一定的参考。

The Logistic, Normal Ogi ve, ARCTG, COS and LINEAR models in

本研究运用蒙特卡罗模拟方法对项目反应理论中的逻辑斯谛、正态卵形、ARCTG、COS和 LINEAR模型进行了比较研究,其结果表明逻辑斯谛、正态卵形和ARCTG模型的参数估计精确度很接近,COS模型的参数估计精确度次之,而LINEAR模型对于项目区分度的估计精确度大大低于另外四个模型,对于项目难度和被试能力的估计精确度和其它模型较接近。

Objective To make pre-testing evaluation for social function dimensionality newly added in the revised work ability index questionnaire(WAI-R).Method One hundred and ninety-eight employees were randomly selected from a factory to fill out WAI-R.Item differentiation analysis,principal component analysis and factor analysis,as well as intra-item reliability,were used for evaluating social function dimensionality of WAI-R.Result Totally,165 questionnaires were reclaimed and 134 of them were valid.Data analysis...

Objective To make pre-testing evaluation for social function dimensionality newly added in the revised work ability index questionnaire(WAI-R).Method One hundred and ninety-eight employees were randomly selected from a factory to fill out WAI-R.Item differentiation analysis,principal component analysis and factor analysis,as well as intra-item reliability,were used for evaluating social function dimensionality of WAI-R.Result Totally,165 questionnaires were reclaimed and 134 of them were valid.Data analysis showed that all items in social function dimensionality sub-questionnaire had better differentiation(P<0.001).Overall score of social function correlated well with five dimensionality scores,such as social adaptation,social support,personal interaction,isolation and recreation,with coefficients of correlation of 0.770,0.823,0.631,0.404 and 0.406,respectively,reaching statistical significance(P<0.01).Scores of dimensionality,such as social adaptation,social support and personal interaction,highly correlated with scores of corresponding items(P<0.01).Items of social function sub-questionnaire could be explained by five common factors,with a cumulative variance of eigenvalue of 67.75% and common factor variance of all items more than 0.50.Social function sub-questionnaire had a better intra-item reliability,with Cronbach's α of 0.764.Cronbach's α for all other items were more than 0.55,except for isolation dimensionality.Conclusion Social function status of employees could be reflected in social function index sub-questionnaire of WAI-R.

目的 对修订版工作能力指数量表 (workabilityindexquestionnaire—revisededition ,WAI R)中增加的社会功能维度进行预试验评价。方法 随机抽取某厂 198名在职职工填写WAI R量表 ,回收量表 165份 ,有效量表 134份 ,采用项目区分度分析、主成分因子分析和同质性信度检验对WAI R量表社会功能维度进行评价。结果 社会功能评价条目均具有很高的鉴别力 (P <0 0 0 1) ;社会功能总分与各维度 (社会适应、社会支持、人际关系、孤独和娱乐活动 )得分之间的相关关系具有统计学意义 (P <0 0 1) ,相关系数分别为 0 770、0 82 3、0 631、0 40 4和 0 40 6。社会适应、社会支持、人际关系维度与其所含条目间也都呈现较高的相关关系 (P <0 0 1) ;社会功能分量表条目分别由 5个共因子支配 ,累计贡献率为 67 75 % ,各条目的公因子方差均高于 0 5 0 ;分量表同质性较好 (Cronbach sα系数 =0 764) ,除孤独维度外 ,其他维度的Cronbach sα系数均在 0 5 ...

目的 对修订版工作能力指数量表 (workabilityindexquestionnaire—revisededition ,WAI R)中增加的社会功能维度进行预试验评价。方法 随机抽取某厂 198名在职职工填写WAI R量表 ,回收量表 165份 ,有效量表 134份 ,采用项目区分度分析、主成分因子分析和同质性信度检验对WAI R量表社会功能维度进行评价。结果 社会功能评价条目均具有很高的鉴别力 (P <0 0 0 1) ;社会功能总分与各维度 (社会适应、社会支持、人际关系、孤独和娱乐活动 )得分之间的相关关系具有统计学意义 (P <0 0 1) ,相关系数分别为 0 770、0 82 3、0 631、0 40 4和 0 40 6。社会适应、社会支持、人际关系维度与其所含条目间也都呈现较高的相关关系 (P <0 0 1) ;社会功能分量表条目分别由 5个共因子支配 ,累计贡献率为 67 75 % ,各条目的公因子方差均高于 0 5 0 ;分量表同质性较好 (Cronbach sα系数 =0 764) ,除孤独维度外 ,其他维度的Cronbach sα系数均在 0 5 5以上。结论 WAI R量表的社会功能分量表能够较好地反映职工的社会功能状况

 
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