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An investigation of machine translation output quality and the influencing factors of source texts 机器翻译输出质量及源文本影响因素的研究
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-07-01 DOI: 10.1017/S0958344021000124
Sangmin-Michelle Lee
Abstract The use of machine translation (MT) in the academic context has increased in recent years. Hence, language teachers have found it difficult to ignore MT, which has led to some concerns. Among the concerns, its accuracy has become a major factor that shapes language teachers’ pedagogical decision to use MT in their language classrooms. Despite the urgency of the issue, studies on MT output quality in foreign language education remain scarce. Moreover, as MT is advancing every year, updated studies are imperative. Therefore, the present study investigated the quality of MT outputs (Google Translate) from Korean to English by comparing it with the English-translated texts of intermediate English as a foreign language students. The study also examined the factors within the source texts that affect the quality of MT outputs. Five trained evaluators examined multiple aspects of MT output samples (N = 104) and students’ English texts (N = 104), including mechanics, vocabulary, grammar, and context. The results showed that both texts were equally comprehensible, but MT outperformed the students in most aspects under investigation. The study further found that only two factors in the source texts – punctuation and sentence complexity – influenced MT output quality, whereas lexical and grammatical accuracy, lexical diversity, and contextual understanding did not affect it. Based on the results, the study presents classroom implications for using MT for educational purposes.
摘要近年来,机器翻译在学术语境中的应用越来越多。因此,语言教师发现很难忽视MT,这引起了一些担忧。其中,其准确性已成为影响语言教师在语言课堂中使用机器翻译教学决策的主要因素。尽管这一问题迫在眉睫,但对外语教育中机器翻译输出质量的研究仍然很少。此外,由于MT每年都在进步,更新研究是必要的。因此,本研究通过与英语为外语的中级学生的英语翻译文本进行比较,来考察从韩语到英语的机器翻译输出(谷歌Translate)的质量。该研究还检查了源文本中影响机器翻译输出质量的因素。五名训练有素的评估人员检查了机器翻译输出样本(N = 104)和学生英语文本(N = 104)的多个方面,包括机制、词汇、语法和上下文。结果表明,两种文本的可理解性相当,但MT在调查的大多数方面都优于学生。研究进一步发现,源文本中只有标点和句子复杂性两个因素影响机器翻译输出质量,而词汇和语法准确性、词汇多样性和上下文理解对机器翻译输出质量没有影响。在此基础上,本研究提出了将机器翻译用于教育目的的课堂意义。
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引用次数: 10
An editable learner model for text recommendation for language learning 语言学习文本推荐的可编辑学习者模型
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-06-30 DOI: 10.1017/S0958344021000197
J. Lee
Abstract Extracurricular reading is important for learning foreign languages. Text recommendation systems typically classify users and documents into levels, and then match users with documents at the same level. Although this approach can be effective, it has two significant shortcomings. First, the levels assume a standard order of language acquisition and cannot be personalized to the users’ learning patterns. Second, recommendation decisions are not transparent because the leveling algorithms can be difficult for users to interpret. We propose a novel method for text recommendation that addresses these two issues. To enhance personalization, an open, editable learner model estimates user knowledge of each word in the foreign language. The documents are ranked by new-word density (NWD) – that is, the percentage of words that are new to the user in the document. The system then recommends documents according to a user-specified target NWD. This design offers complete transparency as users can scrutinize recommendations by reviewing the NWD estimation of the learner model. This article describes an implementation of this method in a mobile app for learners of Chinese as a foreign language. Evaluation results show that users were able to manipulate the learner model and NWD parameters to adjust the difficulty of the recommended documents. In a survey, users reported satisfaction with both the concept and implementation of this text recommendation method.
课外阅读对外语学习很重要。文本推荐系统通常将用户和文档分为不同的级别,然后将用户与同一级别的文档进行匹配。尽管这种方法可能是有效的,但它有两个明显的缺点。首先,这些水平假设语言习得的标准顺序,不能根据用户的学习模式进行个性化。其次,推荐决策不透明,因为均衡算法对用户来说很难解释。我们提出了一种新的文本推荐方法来解决这两个问题。为了增强个性化,一个开放的、可编辑的学习者模型估计用户对外语中每个单词的知识。这些文档按照新词密度(NWD)排序——也就是文档中对用户来说是新单词的百分比。然后系统根据用户指定的目标NWD推荐文档。这种设计提供了完全的透明度,因为用户可以通过审查学习者模型的NWD估计来仔细检查建议。本文介绍了该方法在一款面向对外汉语学习者的手机应用程序中的实现。评估结果表明,用户能够操纵学习者模型和NWD参数来调整推荐文档的难度。在一项调查中,用户对这种文本推荐方法的概念和实施都表示满意。
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引用次数: 5
Mobile-assisted vocabulary learning: Investigating receptive and productive vocabulary knowledge of Chinese EFL learners 移动辅助词汇学习:调查中国英语学习者的接受性和生产性词汇知识
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-05-11 DOI: 10.1017/S0958344021000161
Yan Li, Christoph A. Hafner
Abstract Considerable research has been conducted on the advancement of mobile technologies to facilitate vocabulary learning and acquisition in a second language (L2). However, whether mobile platforms lead to a comprehensive mastery of both receptive and productive vocabulary knowledge has seldom been addressed in previous literature. This study investigated English vocabulary learning from engagement with mobile-based word cards and paper word cards in the context of the Chinese university classroom. A total of 85 undergraduate students were recruited to take part in the study. The students were divided into two groups, a mobile learning group and a paper-based learning group, and tested on two word knowledge components: receptive knowledge of the form–meaning connection and productive knowledge of collocations. Both the digital and non-digital word cards enhanced L2 vocabulary learning, and the results showed that the mobile application (app) promoted greater gains than physical word cards.
摘要对移动技术的发展进行了大量研究,以促进第二语言(L2)的词汇学习和习得。然而,移动平台是否能全面掌握接受性和生产性词汇知识,在以前的文献中很少涉及。本研究调查了在中国大学课堂上使用手机单词卡和纸质单词卡进行英语词汇学习的情况。共有85名本科生被招募参加了这项研究。学生被分为两组,一组是移动学习组,另一组是纸本学习组,并测试了两个单词知识组成部分:形式-意义连接的接受性知识和搭配的生产性知识。数字和非数字单词卡都增强了二语词汇学习,结果表明,移动应用程序比实体单词卡更能促进二语词汇的学习。
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引用次数: 19
Researching massive open online courses for language teaching and learning 研究语言教学和学习的大规模在线开放课程
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-05-01 DOI: 10.1017/S0958344021000094
Elena Martín-Monje, Kate Borthwick
There has been an increasing interest in open educational resources, open practices, and open learning spaces in language teaching and learning in the last decade (Comas-Quinn & Borthwick, 2015; Gimeno-Sanz, 2016) in which language massive open online courses (LMOOCs) have played a relevant role. Defined by Bárcena and Martín-Monje (2014: 1) as “dedicated Web-based online courses for second languages with unrestricted access and potentially unlimited participation”, LMOOCs have experienced an exponential growth since their appearance in 2012 (Jitpaisarnwattana, Reinders & Darasawang, 2019), with an unexpected boost due to the recent pandemic, which has led language learning to be in the top 10 subjects of interest in MOOCs (Shah, 2020). MOOCs have caused a stir in the educational landscape, blurring the distinction between formal, non-formal, and informal education, and encouraging new models of content delivery, tuition, assessment, and accreditation. They have been heralded as a serious attempt to democratise higher education, enabling students around the world access to good-quality language learning resources (see, for instance, Mazoue, 2013). MOOCs are both learner centred and socially oriented, and focus on online social interaction and flexible multimodal resources (Bárcena, Read, Martín-Monje & Castrillo, 2014). They eliminate potential problems such as registration fees and compulsory attendance but preserve the essential defining features of an academic course (i.e. syllabus, learning objectives, course materials, activities, teacher–student and student–student interaction, assessment, etc.). There is even the possibility of obtaining a certificate after completing the course, and in some cases participants obtain credits that are valid for further qualifications at university level. Language MOOCs have been acknowledged to be an emergent and expanding research field (Godwin-Jones, 2014; Martín-Monje & Bárcena, 2014; Panagiotidis, 2019), but have been recently identified by Gillespie (2020) as one of the less studied areas in computer-assisted language learning (CALL). Despite this lack of published research, Gillespie notes that “EUROCALL [the European Association for Computer Assisted Language Learning] has an LMOOC Special Interest Group, so there is clearly interest in this area” (p. 135) and advises researchers to pursue this endeavour. A systematic review of the published literature in LMOOCs (Sallam, Martín-Monje & Li, 2020) has revealed some interesting issues. The main common features of LMOOC design are (1) a robust set of communications for language learning, (2) short videos with linguistic and cultural content, and (3) assessment tools that are valid for heterogeneous cohorts. The main strengths of
在过去的十年里,人们对语言教学中的开放教育资源、开放实践和开放学习空间越来越感兴趣(Comas-Quin&Borthwick,2015;Gimeno-Sanz,2016),其中语言大规模开放在线课程(LMOOC)发挥了相关作用。Bárcena和Martín-Monje(2014:1)将LMOOC定义为“第二语言的专用网络在线课程,访问不受限制,可能参与不受限制”,自2012年出现以来,LMOOC经历了指数级增长(Jitpaisarnwattana,Reinders&Darasawang,2019),由于最近的疫情,这使得语言学习成为MOOC最感兴趣的十大科目(Shah,2020)。MOOC在教育领域引起了轰动,模糊了正规、非正规和非正规教育之间的区别,并鼓励采用新的内容交付、学费、评估和认证模式。它们被誉为高等教育民主化的一次认真尝试,使世界各地的学生能够获得高质量的语言学习资源(例如,见Mazoue,2013)。MOOC既以学习者为中心,又以社会为导向,专注于在线社交和灵活的多模式资源(Bárcena,Read,Martín-Monje&Castrillo,2014)。它们消除了注册费和强制出勤等潜在问题,但保留了学术课程的基本特征(即教学大纲、学习目标、课程材料、活动、师生互动、评估等)。甚至有可能在完成课程后获得证书,在某些情况下,参与者获得的学分对大学级别的进一步资格考试有效。语言MOOC已被公认为是一个新兴且不断扩展的研究领域(Godwin-Jones,2014;Martín-Monje和Bárcena,2014;Panagiotidis,2019),但最近被Gillespie(2020)确定为计算机辅助语言学习(CALL)中研究较少的领域之一。尽管缺乏已发表的研究,Gillespie指出,“欧洲计算机辅助语言学习协会(EUROCALL)有一个LMOOC特别兴趣小组,因此显然对这一领域感兴趣”(第135页),并建议研究人员继续这一努力。对LMOOCs已发表文献的系统综述(Sallam,Martín-Monje&Li,2020)揭示了一些有趣的问题。LMOOC设计的主要共同特征是:(1)一组用于语言学习的强大通信,(2)具有语言和文化内容的短视频,以及(3)适用于异构队列的评估工具。的主要优势
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引用次数: 14
Accuracy development in L2 writing: Exploring the potential of computer-assisted unfocused indirect corrective feedback in an online EFL course 二语写作的准确性发展:探索在线EFL课程中计算机辅助非集中间接纠正反馈的潜力
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-04-28 DOI: 10.1017/S095834402100015X
Cédric Brudermann, M. Grosbois, Cédric Sarré
In a previous study (Sarré, Grosbois & Brudermann, 2019), we explored the effects of various corrective feedback (CF) strategies on interlanguage development for the online component of a blended English as a foreign language (EFL) course we had designed and implemented. Our results showed that unfocused indirect CF (feedback on all error types through the provision of metalinguistic comments on the nature of the errors made) combined with extra computer-mediated micro-tasks was the most efficient CF type to foster writing accuracy development in our context. Following up on this study, this paper further explores the effects of this specific CF type on learners’ written accuracy development in an online EFL course designed for freshmen STEM (science, technology, engineering, and mathematics) students. In the online course under study, this specific CF type was experimented with different cohorts of STEM learners (N = 1,150) over a five-year period (from 2014 to 2019) and was computer-assisted: CF provision online by a human tutor was combined with predetermined CF comments. The aim of this paper is to investigate the impact of this specific CF strategy on error types. In this respect, the data yield encouraging results in terms of writing accuracy development when learners benefit from this computer-assisted specific CF. This study thus helps to gain a better understanding of the role that CF plays in shaping students’ revision processes and could inform language (teacher) education regarding the use of digital tools for the development of foreign language accuracy and the issues related to online CF provision.
在之前的一项研究中(Sarré,Grosbois&Brudermann,2019),我们探讨了各种纠正反馈(CF)策略对我们设计和实施的外语混合英语(EFL)课程在线部分的中介语发展的影响。我们的研究结果表明,非聚焦间接CF(通过对所犯错误的性质提供元语言评论来对所有错误类型进行反馈)与额外的计算机中介微任务相结合,是在我们的环境中促进写作准确性发展的最有效的CF类型。在这项研究的基础上,本文在为STEM(科学、技术、工程和数学)新生设计的在线EFL课程中进一步探讨了这种特定的CF类型对学习者书面准确性发展的影响。在所研究的在线课程中,在五年的时间里(从2014年到2019年),对不同的STEM学习者群体(N=1150)进行了这种特定的CF类型的实验,并得到了计算机辅助:由人类导师在线提供CF与预先确定的CF评论相结合。本文的目的是研究这种特定的CF策略对错误类型的影响。在这方面,当学习者受益于这种计算机辅助的特定CF时,数据在写作准确性发展方面产生了令人鼓舞的结果。因此,本研究有助于更好地理解CF在塑造学生复习过程中所起的作用,并为语言(教师)教育提供信息,了解使用数字工具提高外语准确性以及在线CF提供的相关问题。
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引用次数: 3
What are language learners looking for in a collocation consultation system? Identifying collocation look-up patterns with user query data 语言学习者在搭配咨询系统中寻找的是什么?使用用户查询数据识别并置查找模式
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-04-27 DOI: 10.1017/S0958344021000057
Shaoqun Wu, Alannah Fitzgerald, A. Yu, Zexuan Chen
Corpus consultation with concordancers has been recognized as a promising way for learners to study and explore language features such as collocations at their own pace and in their own time. This study examined 1.5 million search queries sent to a collocation consultation tool called FlaxCLS (Flexible Language Acquisition Collocation Learning System; http://flax.nzdl.org) over a period of two years to identify learners’ collocation look-up patterns. This paper examines and characterizes learners’ look-up patterns as they entered search queries, clicked on the query formation aids provided by the system, and navigated through the different levels of collocation information returned by the system to support collocation learning. We looked at how learners formulated query terms, and we analyzed the characteristics of query words learners entered, the characteristics of collocations they preferred, and the sample sentences they checked. Our collocation look-up pattern analyses, similar to traditional user query analyses of the web, provide interesting and revealing insights that are hard to obtain from small-scale user studies. The findings provide valuable information and pedagogical implications for data-driven learning (DDL) researchers and language teachers in designing tailored collocation consultation systems and activities. This paper also presents multidimensional analyses of learner query data, which, to the best of our knowledge, have not been explored in DDL research.
语料库咨询与协和舞者已被认为是一个有前途的方式,为学习者学习和探索语言特征,如搭配在自己的节奏和自己的时间。这项研究调查了发送到搭配咨询工具FlaxCLS(灵活语言习得搭配学习系统;http://flax.nzdl.org)在两年的时间里发现学习者的搭配查找模式。本文研究了学习者在输入搜索查询、点击系统提供的查询形成辅助工具、在系统返回的不同层次的搭配信息中导航以支持搭配学习时的查找模式,并对其进行了表征。我们观察了学习者是如何制定查询词的,我们分析了学习者输入的查询词的特征,他们喜欢的搭配的特征,以及他们检查的样句。我们的搭配查找模式分析,类似于传统的网络用户查询分析,提供了难以从小规模用户研究中获得的有趣和有启发性的见解。研究结果为数据驱动学习(DDL)研究人员和语言教师设计量身定制的搭配咨询系统和活动提供了有价值的信息和教学意义。本文还介绍了学习者查询数据的多维分析,据我们所知,这在DDL研究中还没有被探索过。
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引用次数: 0
Clicking, but connecting? L2 learning engagement on an ab initio Irish language LMOOC 点击,但连接?从头开始的爱尔兰语LMOOC的第二语言学习参与
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-04-23 DOI: 10.1017/S0958344021000100
Conchúr Mac Lochlainn, Mairéad Nic Giolla Mhichíl, Elaine Beirne
Abstract Language massive open online courses (LMOOCs) represent an exciting prospect for language teachers and instructors around the globe (Bárcena & Martín-Monje, 2014). In this paper, we report on the dynamics of participation and learner behaviour in an ab initio Irish language course. The course, Irish 101, ran during March 2019, and we used a mixed-methods approach to analyse both typical patterns of behaviour among course participants and learner reflections upon their reasons for doing so. Findings suggest that most learners use the course resources in an assessing and exploratory manner and are far less likely to produce, or to examine, second language (L2) output, either written or spoken. Learners were found to be selective and to demonstrate significant metacognitive awareness (Wenden, 1998) in their interactions and learning methods, displaying agency and exploiting affordances beyond the design of the course itself. Implications for LMOOC design, including the need to question whether courses should emphasise L2 production or resource provision, are considered, in addition to a general need for more granular, dynamic research, so as to better understand the types of learners who engage in LMOOCs and to better cater to diverse learning needs.
摘要语言大规模开放在线课程(LMOOC)为全球语言教师和教师带来了令人兴奋的前景(Bárcena和Martín-Monje,2014)。在这篇论文中,我们报道了爱尔兰语言课程中参与和学习者行为的动态。这门名为“爱尔兰101”的课程于2019年3月开设,我们使用混合方法分析了课程参与者的典型行为模式和学习者对其原因的反思。研究结果表明,大多数学习者以评估和探索的方式使用课程资源,不太可能产生或检查第二语言(L2)输出,书面的或口头的。研究发现,学习者具有选择性,在互动和学习方法中表现出显著的元认知意识(Wenden,1998),表现出能动性,并利用课程设计之外的可供性。除了对更精细、动态的研究的普遍需求之外,还考虑了对LMOOC设计的影响,包括是否需要质疑课程是否应该强调二语生产或资源提供,以便更好地了解参与LMOOC的学习者类型,并更好地满足多样化的学习需求。
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引用次数: 5
Motivation, self-efficacy beliefs, and speaking anxiety in language MOOCs 语言mooc的动机、自我效能信念与口语焦虑
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-04-23 DOI: 10.1017/S0958344021000033
Zsuzsanna Bárkányi
Abstract This paper examines the role of motivation, anxiety, and self-efficacy beliefs and their interplay with regard to speaking on beginners’ Spanish LMOOCs. It answers three research questions: (1) what are learners’ motivations and goals for joining these LMOOCs and how do these relate to foreign language speaking anxiety; (2) how do learners’ self-efficacy beliefs and anxiety levels change as a result of course completion; and (3) is there a correlation between motivation, foreign language speaking anxiety, and self-efficacy beliefs in this context? A mixed-methods research design used quantitative and qualitative data gathered from self-reflective questionnaires and forum discussions. The results reveal that learners with intrinsic motivation are more likely to complete the courses than those who sign up to manage a personal situation or advance in their career or studies. No direct correlation was, however, found between motivation and the other variables under scrutiny. Learners present higher self-efficacy beliefs at the end of the courses than at the beginning, while anxiety levels are affected to a much smaller degree by course completion. Although spoken interactions in this learning environment are not synchronous, apprehension and anxiety prevent many learners from fully participating in the speaking activities.
摘要本文考察了动机、焦虑和自我效能信念在初学者西班牙语LMOOC口语中的作用及其相互作用。它回答了三个研究问题:(1)学习者加入LMOOC的动机和目标是什么,以及这些动机和目标与外语口语焦虑之间的关系;(2) 学习者的自我效能信念和焦虑水平如何随着课程完成而变化;(3)在这种情况下,动机、外语焦虑和自我效能信念之间是否存在相关性?混合方法研究设计使用了从自我反思问卷和论坛讨论中收集的定量和定性数据。研究结果表明,与那些报名管理个人情况或在职业或学习中取得进步的人相比,具有内在动机的学习者更有可能完成课程。然而,在动机和其他被仔细研究的变量之间没有发现直接的相关性。学习者在课程结束时表现出比课程开始时更高的自我效能信念,而焦虑水平受课程完成程度的影响要小得多。尽管这种学习环境中的口语互动是不同步的,但恐惧和焦虑阻碍了许多学习者充分参与口语活动。
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引用次数: 17
Developing in-service teachers’ pedagogical knowledge of CALL through project-oriented tasks: The case of an online professional development course 通过项目导向任务发展在职教师的CALL教学知识:以在线专业发展课程为例
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-04-19 DOI: 10.1017/S0958344021000148
Fatemeh Nami
Abstract The growing popularity of online CALL professional development (PD) courses and programs has necessitated a more in-depth look into their design. For so doing, a qualitative case study was carried out to explore how project-based learning (PBL) contributes to six in-service teachers’ CALL PD. Drawing on data obtained from technology-review projects and follow-up discussions, it was observed that the experience of review, reflection, and discussion enhanced participants’ technological knowledge, along with their attention to the affordances and constraints of different tools, their application for materials development or selection, and CALL evaluation. The potential contribution of this study to PD research lies in the account of how inquiry-oriented projects can be defined into the design of a CALL PD. The integration strategies are applicable for online PD attempts across various contexts.
随着在线CALL专业发展(PD)课程和项目的日益普及,有必要对其设计进行更深入的研究。为此,本研究以质性个案研究探讨专案型学习(PBL)对六名在职教师CALL PD的影响。根据从技术评审项目和后续讨论中获得的数据,观察到评审、反思和讨论的经验增强了参与者的技术知识,以及他们对不同工具的能力和约束、它们在材料开发或选择中的应用以及CALL评估的关注。本研究对PD研究的潜在贡献在于如何将探究式项目定义为CALL PD的设计。集成策略适用于跨各种上下文的在线PD尝试。
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引用次数: 8
The impact of computer-aided concept mapping on EFL learners’ lexical diversity: A process writing experiment 计算机辅助概念映射对英语学习者词汇多样性的影响:一个过程写作实验
IF 4.5 1区 文学 Q1 EDUCATION & EDUCATIONAL RESEARCH Pub Date : 2021-04-15 DOI: 10.1017/S095834402100001X
M. Hassanzadeh, E. Saffari, Saeed Rezaei
Nowadays, many second/foreign language (L2) academic writing instruction programs place a high premium on pre-writing strategies. The current study examined the effect of software-supported concept mapping on lexical diversity (LD) of English learners’ argumentative essays within a process writing framework. Additionally, the relationship between the learners’ LD and their overall writing quality was investigated. To this end, 53 university English as a foreign language (EFL) undergraduates were assigned to a computer-aided concept mapping (CACM) and a traditional outlining condition over a span of seven weeks. The CACM group was instructed through the graphic organizer software Inspiration®, whereas the comparison group underwent outlining instruction for planning their writing tasks. Measure of textual lexical diversity (MTLD) was used to assess the so-called D values of the assignments. The results revealed that the CACM group outperformed the outlining group in terms of LD scores. Also, no relationship was found between LD and overall quality of the essays. The findings provide L2 researchers and teachers with insights into understanding the use of CACM strategy in process writing. Moreover, exploiting MTLD afforded our experiment the opportunity to counteract potential pitfalls associated with text size. Further implications for the L2 teacher are also discussed.
如今,许多第二外语(L2)学术写作教学项目都高度重视写作前策略。本研究在过程写作框架下考察了软件支持的概念映射对英语学习者议论文词汇多样性的影响。此外,还调查了学习者的LD与整体写作质量之间的关系。为此,53名大学英语作为外语(EFL)本科生被分配到计算机辅助概念映射(CACM)和传统的概述条件下,为期七周。CACM组通过图形组织软件Inspiration®进行指导,而对照组则接受了规划写作任务的大纲指导。使用语篇词汇多样性(MTLD)来评估作业的所谓D值。结果显示,CACM组在LD得分方面优于概述组。此外,LD和论文的整体质量并没有关系。研究结果为二语研究人员和教师理解CACM策略在过程写作中的使用提供了见解。此外,利用MTLD为我们的实验提供了抵消与文本大小相关的潜在陷阱的机会。还讨论了对二语教师的进一步启示。
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