IRT模型参数估计的新方法——MCMC算法

本研究主要探讨MCMC算法在IRT模型参数估计中的实现及其估计精度.通过模拟多种实验条件(人少题少、人题适中、人多题多、被试数及其参数固定情况下项目数变化、项目数及其参数固定情况下人数变化),考察两参数和叁参数Logistic模型的MCMC算法对其参数估计的精度,并与国际通用测量程序-Bilog程序(E-M算法)进行比较研究.模拟实验研究表明,上述各种实验条件下,MCMC算法均可用于IRT模型参数估计,且其估计的精度均较Bilog程序(E-M算法)高,值得推广.     

小学语文教科书中人物的心理学研究

语文教科书中的人物具有一定的特征,并影响学生的社会化。本文对人民教育出版社出版的从1993年9月开始使用至今的九年义务教育六年制小学语文教科书进行了统计和分析。统计结果显示：1．在民族类别上,汉族人是少数民族人的25．2倍,显示了以汉族人为中心的特点。2．在形象倾向上,人物的形象倾向反映了教学大纲中的一些要求．但对现代人的形象和时代发展所需的一些精神品质反映不够。3．在身份／职业上,人物的身份／职业主要集中于政治家、军人、文学家等少数几种．对普通平凡的身份／职业描写不多。4．在国别上．中国人物的数量是外国人物数量的5．5倍,对外国人的形象描写未能较好体现出时代发展的要求。     

Chinese adaptation of Emotion Regulation Questionnaire for Children and Adolescents (ERQ‐CCA): A psychometric evaluation in Chinese children

This study validated a Chinese adaptation of the Emotion Regulation Questionnaire for Children and Adolescents (ERQ‐CCA), a self‐report instrument that evaluates two emotion regulation (ER) strategies, based on the process model of ER. The ERQ‐CCA was evaluated using a sample of 1381 Chinese children aged between 7 and 12 years. The internal consistencies of the two factors indicated adequate reliability. Confirmatory factor analysis (CFA) revealed good support as the structure proved to be identical with that of the original instrument. Multigroup CFA supported an invariant factor solution of the ERQ‐CCA across several demographic variations (gender, age, registered permanent residence and migrant status) in different groups. Test–retest correlations over a 2‐month period were calculated using a subsample of children (N = 70). Convergent validity was evaluated in relation to the model dimensions of the ERQ‐CCA, Chinese version of the Children's Depression Inventory, and Chinese version of the Eysenck Personality Questionnaire for Children and Adolescents. Results indicated that the ERQ‐CCA has generally satisfactory reliability and validity in investigating the use of two ER strategies during the middle childhood developmental period.     

思维方式的虚拟性转换及其意义

当今时代,随着信息网络技术和虚拟现实技术的发展,虚拟实践正崛起为一种新的实践方式。随着实践形态的变化,主体的思维方式也从现实性的思维转向虚拟性的思维。深入探讨虚拟实践所引发的思维方式转换,揭示虚拟思维的新特点及其社会功能,既是当代社会发展实践诉求的反映,也是进一步深化马克思主义哲学研究的需要。一虚拟实践对思维主体的影响虚拟是表征主体超越现实性的哲学范畴。“虚拟”本身有以下两层含义:一是对现实的模拟,强调对现实的仿真效果;二是对现实事物的超越。虚拟并不是虚幻和真“无”,而是借助现代科技的现实创造。虚拟作为一…     

Catastrophizing,Depression and Anxiety During Pregnancy: Relation Between Lumbopelvic Pain and Physical/Social Functioning

Catastrophizing, a cognitive behavioral aspect of pain, is defined as an excessively negative orientation against a noxious stimulus. The primary goal of the present study is to assess the association between catastrophizing and lumbopelvic pain intensity during the pregnancy period, the secondary goal is to explore the variation of pain catastrophizing, anxiety and depression, and the tertiary goal is to investigate the relationship between catastrophizing and quality of life. After approval, pregnant women with lumbopelvic pain were invited to join in the study. During admission, participants were asked to complete questionnaires including Pain Catastrophizing Scale, Beck Anxiety Inventory, Beck Depression Inventory-II, and Short Form-36. Age, gravida, parity, number of abortus, number of live-births and the pain intensity score were recorded. A total of 429 women were enrolled in the study. Pain catastrophizing scores showed a fluctuation during pregnancy, and were significantly correlated with the scores of Beck Anxiety Inventory, Beck Depression Inventory, Visual Analog Scale, and Short Form-36 sub-scales including social functioning, vitality, physical functioning and mental health. The present study demonstrated that catastrophizing level shows an alteration throughout the pregnancy period, and variation in catastrophizing shows an approximately similar course with pain intensity, depression and anxiety.     

Parents’ attitudes toward the perceived usefulness of Internet-related instruction in preschools

Integrating Internet-related applications into preschool instructional activities can enable children to develop multiple aspects of their learning abilities as well as their cognitive, affective, and relevant skills. Because of the trends toward an Internet society and parents’ expectations from preschools, many teachers have considered parents’ perceptions about the usefulness of the Internet in daily life and in workplace settings. This study examined the impacts of parents’ attitudes toward Internet use and their expectations of preschools to use Internet-related applications. We administered a questionnaire in Taiwan comprising five factors: usefulness, work value, preschool expectations, teacher competence, and learning performance. The survey data were analyzed using structural equation modeling. The findings revealed that parents perceived the Internet as an innovative and useful tool that enhances their lives and improves their work performance. Their perceptions toward the usefulness and work value of Internet-related practices positively influenced their attitudes toward preschool expectations, and acknowledge the pedagogical advantages associated with integrating Internet-related applications into teaching for developing young children’s learning abilities. The implications of the findings are also discussed in this paper.     

A Polytomous Model of Cognitive Diagnostic Assessment for Graded Data

Pursuing the line of the difference models in IRT (Thissen &; Steinberg, 1986 Thissen, D., &; Steinberg, L. (1986). A taxonomy of item response models. Psychometrika, 51:567–577. doi:10.1007/BF02295596.[Crossref], [Web of Science ®] , [Google Scholar]), this article proposed a new cognitive diagnostic model for graded/polytomous data based on the deterministic input, noisy, and gate (Haertel, 1989 Haertel, E. H. (1989). Using restricted latent class models to map the skill structure of achievement items. Journal of Educational Measurement, 26, 333–352. doi:10.1111/j.1745-3984.1989.tb00336.x.[Crossref], [Web of Science ®] , [Google Scholar]; Junker &; Sijtsma, 2001 Junker, B. W., &; Sijtsma, K. (2001). Cognitive assessment models with few assumptions, and connections with nonparametric item response theory. Applied Psychological Measurement, 25, 258–272. doi:10.1177/01466210122032064.[Crossref], [Web of Science ®] , [Google Scholar]), which is named the DINA model for graded data (DINA-GD). We investigated the performance of a full Bayesian estimation of the proposed model. In the simulation, the classification accuracy and item recovery for the DINA-GD model were investigated. The results indicated that the proposed model had acceptable examinees' correct attribute classification rate and item parameter recovery. In addition, a real-data example was used to illustrate the application of this new model with the graded data or polytomously scored items.     

一种简单有效的Q矩阵估计方法开发：基于非参数化方法视角

摘要：Q矩阵是认知诊断的基础,错误的Q矩阵会影响参数估计和被试诊断正确率,开发一种简单而有效的Q矩阵估计方法有助于Q矩阵的正确界定。相对于参数化的Q矩阵估计方法,本研究将海明距离（Hamming Distance,HD）用于Q矩阵估计,开发出一种简单有效的非参数化的Q矩阵估计方法。采用Monte Carlo模拟方法与实证研究相结合的研究范式,对该方法的科学性与合理性及其效果进行研究,研究结果发现（1）基于海明距离的Q矩阵估计法具有较高的估计正确率,并且该方法不受被试样本容量影响。（2）该方法简单易懂,运算时间短,是一种简单而有效的Q矩阵估计方法。（3）新方法对于Tatsuka（1990）分数减法测验的Q矩阵的估计准确率尚可,说明新方法在实践中具有较好的潜在应用前景与应用价值。