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首先介绍计算机自适应测试的国内外研究现状,然后简要介绍自适应测试的理论基础,最后结合目前计算机自适应测试系统的不足,总结其未来的发展趋势。 相似文献
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本文阐述了基于Internet的远程测试系统的设计原则,讨论了远程测试系统的体系结构,并对远程测试系统的组成进行了探讨。 相似文献
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刘发明 《赣南师范学院学报》2005,26(6):64-66
介绍了项目反应理论(IRT)的基本理论和计算机化自适应测试(CAT)的实现过程。并在Visual Stu-dio.net2003的环境下,以SQL作为后台数据库,以三参数Logistic模型为项目反应模型,开发了一个基于WEB的CAT系统。 相似文献
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本文主要介绍如何运用Grails框架进行快速Web应用开发。文章首先简单介绍了Grails框架开发环境;然后,在分析GrailsMVC模式实现和自适应考试系统原理的基础上,采用用例分析技术和领域模型驱动模式,基于Grails框架设计实现了一个自适应测试系统;最后,还针对安全权限控制和国际化等问题充分利用Grails插件给出了相应的解决方案。系统经过两年的运行取得良好效果,且在不断改进中。 相似文献
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基于Internet的液位控制实验系统 总被引：2，自引：0，他引：2
介绍了基于Internet的液位控制实验系统,该实验系统是浙江大学电工电子网络实验室系统的一个子系统,它综合利用了互联网、自动控制、计算机实时控制、面向对象编程和数据库等技术,使学生可以通过远程登陆进行实验,并通过Internet返回实验结果。 相似文献
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介绍了Internet所提供的各种基本服务及功能，并指出采用有线电视网提供Internet，可以获得更宽的带宽和更快的传输率。介绍了Internet接入有线电视系统的实现方法、原理及实际应用时的一些建议。 相似文献
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VPN是一门新的网络技术，公司不需建立自己的专用线路，只要公司局域网已经接入了Internet，并且在Internet上有自己固定的IP地址，就可以通过Internet网或其他公用网络实现异地之间两台计算机或局域网之间的互连，通过建立一个安全的隧道连接，使得外部计算机或局域网可以安全访问公司内部局域网。本对VPN做了简单介绍，提出了建立公司VPN服务的方法，并给出了常用系统VPN的设置方法。 相似文献
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《现代教育技术》精品课程自适应测试系统的设计 总被引：2，自引：0，他引：2
评价方式的改革是当前教育教学改革的重要内容之一,本文在阐述项目反应理论的基础上,给出一种基于三参数逻辑斯蒂模型的自适应在线测试系统的体系结构,分析了该系统的题库建立过程、选题算法、能力评估算法以及测试终止条件,并针对<现代教育技术>国家精品课程设计了自适应测试的原型系统MET-CATS,分析了系统自适应测试的运行过程和评价过程. 相似文献
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徐宗品 《合肥师范学院学报》2014,(2):121-125
徽派版画作为中国版画艺术发展史中的里程碑,是中国版画走向独立审美的转折点。徽派版画插图制作更加注重欣赏性,徽州制墨技术的发达和版画技术的创新丰富了版画的表现手段和艺术语言,徽州技艺高超的刻工和文人画家的密切合作,保障了徽派版画的制作水平,提升了插图的艺术品位,使对审美意境的追求成为中国版画的自觉意识;系列单幅版画的出现又使徽派版画插图逐渐脱离了书籍的束缚。从审美价值及艺术影响看,徽派版画创造的婉约之美是明清版画艺术创作中的主流范式。 相似文献
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A computerized adaptive testing (CAT) algorithm that has the potential to increase the homogeneity of CAT's item-exposure rates without significantly sacrificing the precision of ability estimates was proposed and assessed in the shadow-test ( van der Linden & Reese, 1998 ) CAT context. This CAT algorithm was formed by a combination of maximizing or minimizing varied target functions while assembling shadow tests. There were four target functions to be separately used in the first, second, third, and fourth quarter test of CAT. The elements to be used in the four functions were associated with (a) a random number assigned to each item, (b) the absolute difference between an examinee's current ability estimate and an item difficulty, (c) the absolute difference between an examinee's current ability estimate and an optimum item difficulty, and (d) item information. The results indicated that this combined CAT fully utilized all the items in the pool, reduced the maximum exposure rates, and achieved more homogeneous exposure rates. Moreover, its precision in recovering ability estimates was similar to that of the maximum item-information method. The combined CAT method resulted in the best overall results compared with the other individual CAT item-selection methods. The findings from the combined CAT are encouraging. Future uses are discussed. 相似文献
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Laura M. Justice Lori Skibbe Andrea Canning Chris Lankford 《Journal of Research in Reading》2005,28(3):229-243
This study used eye‐gaze analysis to determine the extent to which pre‐school children visually attended to print when looking at two storybooks, to contrast visual attention to print for a print‐salient versus a picture‐salient storybook, and to study individual differences in pre‐schoolers' visual preferences. Results indicated that pre‐school children infrequently attended to print: in a traditional picture‐salient storybook, 2.7% of their fixations focused on print and 2.5% of their time was spent looking in regions of print. The children fixated more frequently on print and spent more time looking in print regions when reading a print‐salient storybook, within which 7% of fixations focused on print and 6% of time was spent in print zones. Effect size estimates showed this difference to be consistent with a very large effect. Little variation in visual attention to print was observed across the ten children, and children's alphabet knowledge was not associated with the variance in children's visual attention to print. Educational implications are discussed. 相似文献
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甲骨文图文编辑系统的设计与实现 总被引：1，自引：0，他引：1
图文编辑是现代印刷出版系统的基本功能之一,本文针对现代通用的图形编辑工具在甲骨文图文印刷方面的不足,提出了甲骨文字形动态编辑的理论和方法,设计了甲骨文字形动态描述库,开发了基于字形动态编辑的图文排版系统,解决了困扰人们多年的甲骨文字形输入、编辑和印刷方面的难题。 相似文献
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Research Findings: Environmental print provides children with their earliest print experiences. This observational study investigated the frequency of mother–child environmental print referencing and its relationship with emergent literacy. A total of 35 mothers and their children (ages 3–4 years) were videotaped interacting in an environmental print–rich play setting. The frequency of environmental print referencing of letters and words was measured. Children were assessed on emergent literacy skills (letter name and sound knowledge, print concepts, phonological awareness, name and letter writing, environmental print reading). In all, 69% of mothers referenced environmental print. After child age, home literacy teaching, and maternal education were controlled for, greater maternal referencing of environmental print was positively related to print concepts and name and letter writing. Child environmental print referencing was positively related to name and letter writing as well as to maternal environmental print referencing. Mothers used a range of mediation strategies to support children's interactions with environmental print. Practice or Policy: Maternal referencing of environmental print may be a useful way to scaffold emergent literacy in young children. 相似文献
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Young children are exposed to environmental print within their communities and this print may be a useful resource to foster emergent literacy skills. This pre-post-test randomised controlled study examined the effects of using environmental print to enhance emergent literacy skills in children aged three to four years (N = 50) from a low-SES community in south-east Queensland, Australia. The 8-week (30 min/week) environmental print programme provided multisensory strategies for children to interact with environmental print by identifying letters and words, tracing letters with fingers, and writing letters. ANCOVAs were conducted with pre-test scores as covariates. Children in the environmental print group significantly out-performed the control group on print knowledge, sound knowledge, and print awareness skills. The programme had moderate to large effects sizes and showed that guiding low-SES preschoolers’ interactions with environmental print using multisensory strategies is an effective way to foster emergent literacy skills. 相似文献
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Jaclyn M. Dynia Laura M. Justice Jill M. Pentimonti Shayne B. Piasta Joan N. Kaderavek 《Journal of Research in Reading》2013,36(3):261-279
Storybook features, such as linguistic richness and print salience, potentially influence how a teacher references print. This study addressed two research questions: (1) to what extent does the linguistic richness and print salience of children's storybooks relate to teachers’ use of print referencing? and (2) to what extent is there an interplay between storybooks’ linguistic richness and print salience when predicting teachers’ use of print referencing? Fifty‐seven teachers participated in a whole‐group read‐aloud intervention while including print‐referencing behaviours. Researchers analysed teacher videos in order to (1) document teachers’ use of print referencing and (2) document the storybook's linguistic features and print salience. Results indicated that print salience is highly positively related to teachers’ use of print referencing. Also, the constructs of Print Salience Metric (PSM) and total words predicted teachers’ use of print referencing, and the interaction between PSM and mean length of sentence was significant for storybooks with moderate and high PSM scores. 相似文献
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Four year old children’s acquisition of print knowledge during electronic storybook reading 总被引：1，自引：0，他引：1
The experiment reported here explored the importance of engaging 4-year-old children’s interest in the print itself during
storybook reading. We explored the effect of computer animation of the print in order to draw the child’s attention to each
word as it was read. We also investigated the influence of illustrating that not all visual displays are readable print on
the child’s print knowledge. The measures of interest were print concept knowledge and early reading skill. Results indicated
that simply drawing children’s attention to the print during shared reading was insufficient to facilitate children’s learning
of print conventions, but this attention to print while hearing stories read did improve children’s letter reading. The child’s
active engagement with the print during shared story reading led to further improvements in written language skills, as illustrated
by gains in knowledge about print concepts. 相似文献
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本文主要从测试目标、设计策略,系统结构以及可行性问题的解决方法等方面,讨论了一种简便易行,具有一定实用性,能充分地发挥中学微机作用的计算机物理辅助测试(CAT)系统,并提出了在小内存微机上实现物理CAT系统的可行性方法。 相似文献