分布式计算在计算机自适应测验系统中的应用  

Application of Distributed Computing in Computer Adaptive Testing System

作　　者：周巾裕 赵守盈[1] 赵德轩[1] 

机构地区：[1]贵州师范大学教育科学学院,贵州贵阳550001

出　　处：《黔南民族师范学院学报》2016年第4期107-110,115,共5页Journal of Qiannan Normal University for Nationalities

基　　金：贵州省科学技术基金项目"项目反应理论与经典测量理论的信效度关联研究"(黔科合J字[2015]2115号)阶段性成果

摘　　要：计算机自适应测验依据被试作答的反应自动选择测验项目,是项目反应理论与计算机技术相结合的一种考试组织形式。随着计算机自适应测验的使用越来越广,特别是在大型考试的实施过程中,服务器的处理能力成为制约考试规模的重要因素之一。分布式计算可以有效提高系统的载荷,为网络服务提供更快的响应速度。贵州师范大学CAT实验室开发的计算机自适应测验系统PowerCAT,运用分布式计算的方式,为大规模考试提供了可用的负载能力。Based on the response of the test response,computerized adaptive testing automatically selects test project,and it is an examination of organizational form through the combination of project response theory with computer technology. With the wide application of computer adaptive testing,especially in the process of the implementation of the large test,the processing ability of the server has become one of the important factors that restrict the size of the test. Distributed computing can effectively improve the load of the system and provide better response speed for the network service. CAT Laboratory of Guizhou Normal University has developed a computer adaptive testing system PowerCAT,which provides the ability to load for large-scale test through the use of distributed computing methods.

关 键 词：项目反应理论 计算机自适应测验 分布式计算 PowerCAT 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]