计算机辅助二语动态评估系统PELDiaG和CODA的比较研究  

Computer-Assisted L2 Dynamic Assessment: A Comparative Study between PELDiaG and CODA

作　　者：何惠勤[1] 

机构地区：[1]西安交通大学,外国语学院,陕西 西安

出　　处：《现代语言学》2021年第1期231-242,共12页Modern Linguistics

摘　　要：本文介绍和比较了两个典型的计算机辅助二语动态评估在线系统PELDiaG和CODA,从诊断试题命制、干预方式以及迁移任务的设计等方面对比分析二者的异同,以期为智能化的二语动态评估研究的发展提供借鉴。二者从社会文化理论出发,以动态评估方法为框架,以计算机和互联网技术为支撑,用不同的研究方法探索了二语学习者在不同的动态干预模式下的学习行为。PELDiaG系统在诊断试题的构建方面更为严谨,CODA系统则通过设计一种特殊的评分方式来量化学习潜能。PELDiaG系统以多模态的文字图表视频等作为介入手段,是一种比较显性的介入方式,而CODA系统对学习者的干预通过逐渐显化干预来实现。As a learning-oriented and diagnostic assessment approach, Dynamic Assessment (DA) focuses on the learning process and the learners’ individual development. It aims to integrate mediation and instruction into assessment, and thus provides diagnostic information about the learner’s weaknesses and strengths, with the hope of pinpointing the source of the students’ problems in learning. Recently, DA research has been expanded to the field of second language (L2) education and then computer-assisted language learning setting, as is shown in this study. Two computer-assisted L2 dynamic assessment systems, CODA (Computerized Dynamic Assessment) and PELDiaG (Personalized English Learning: Diagnosis and Guidance), constructed respectively by two research teams at the US and Chinese universities, are introduced and compared in a systematic and detailed way. Similarities and differences are discussed with a focus on such DA features as transfer, DA models, and intervention. The study sheds light on the future research on second language assessment as well as L2 computer-assisted teaching and learning.

关 键 词：动态评估 诊断性评估 计算机辅助教学 第二语言评估 

分 类 号：G63[文化科学—教育学]