政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/128850

政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/128850

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题名:	發展「主題分析即時回饋系統」促進非同步線上討論成效 Developing a Topic Analysis Instant Feedback System to facilitate asynchronous online discussion performance
作者:	張文騫 Chang, Wen-Chien
贡献者:	陳志銘 Chen, Chih-Ming 張文騫 Chang, Wen-Chien
关键词:	非同步線上討論討論成效隱性引導策略隱含狄利克雷分布主題模型社會性科學議題科技接受度 Asynchronous online discussion Discussion performance Implicit guidance strategy Latent Dirichlet Allocation topic model Socio-scientific issues Technology acceptance
日期:	2020
上传时间:	2020-03-02 11:11:27 (UTC+8)
摘要:	資訊時代下學習與科技越來越密不可分，而非同步線上討論為數位學習中常見的學習活動之一，過程中學習者透過合作方式參與學習，不受時間和空間限制的分享想法、提出問題和進行討論回饋，以達到知識分享及強化學習的目的。但是若缺乏適當有效促進討論的輔助機制，便可能產生討論內容偏離主題，討論內容過於狹隘且不夠深入等問題。因此，本研究設計「主題分析即時回饋系統(Topic Analysis Instant Feedback System, 以下簡稱TAIFS)」，希望透過將學習者合作學習討論的內容，即時轉換成主題與主題比率形式視覺化呈現，使學習者能即時掌握線上討論中全體討論狀況與異同觀點，進而有效提升討論成效。本研究採用準實驗研究法，隨機選取台北市某高中一年級兩班共61名學生為研究對象，其中一班31名學生被隨機分派為採用TAIFS輔助線上討論之實驗組，另一班30名學生則被分派為使用一般Moodle線上討論之控制組。兩組學習者進行「海岸地區利用」之社會性科學議題(socio-scientific issues, 以下簡稱SSI)線上討論，以探討兩組學習者在討論成效之複雜度與多觀點，以及科技接受度是否具有顯著的差異。此外，也以性別作為背景變項，探討不同性別學習者，在討論成效之複雜度與多觀點，以及科技接受度是否具有顯著的差異。研究結果發現，相較於使用一般Moodle線上討論區的控制組，採用TAIFS輔助線上討論的實驗組在整體討論成效、分項之複雜度與多觀點皆顯著優於控制組，並且在有TAIFS輔助討論時，不論是女性或男性學習者，在整體討論成效、分項之複雜度與多觀點上的提升並無顯著差異，表明TAIFS輔助不論何種性別的學習者討論時，皆能有效的提升討論成效。但相較沒使用TAIFS的學習者，有使用TAIFS的學習者中，女性學習者在提升多元觀點上較男性學習者明顯。而在科技接受度上兩組並沒有達到統計上的顯著差異，皆呈現普遍高的科技接受度。此外，訪談質性資料分析顯示，採用TAIFS的實驗組受訪者普遍覺得全體討論即時主題、小組討論主題占比，以及檢索詞站內外搜尋的功能，皆能有效幫助學習者從不同角度進行議題討論。最後基於研究結果，本研究提出TAIFS系統優化建議、Moodle討論區優化建議，以及未來可以繼續進一步探討的研究方向。整體而言，本研究將討論區學習、討論區內容引導策略、自然語言處理與資料視覺化等技術進行整合所發展之TAIFS，提供一個科技輔助線上討論之創新有效學習工具，對於促進數位學習之線上討論具有貢獻。 In the information age, learning and technology are becoming more and more inseparable. Asynchronous online discussion is one of the common learning activities in digital learning. In the process, learners participate in learning through cooperative methods. Sharing ideas and asking questions without being limited by time and space, and give feedback to achieve the purpose of knowledge sharing and reinforcement learning. However, if there is no proper and effective assist mechanism to facilitate discussion, the discussion content may deviate from the topic and the discussion content is too narrow and not deep enough. Therefore, this research designed the "Topic Analysis Instant Feedback System (TAIFS)", hoping to convert the content of the collaborative learning discussions of learners into a visual representation of the topic and the topic ratio in real time, so that the learners can immediately grasp the overall discussion status, similarities opinions and differences opinions in discussions, and effectively improve the discussion performance. In this study, a quasi-experimental research method was used. A total of 61 students from two classes in a high school in Taipei City were randomly selected. One class of 31 students was randomly assigned to the experimental group using TAIFS to assist online discussion, and the other class of 30 students are assigned to control groups using general Moodle online discussions. Two groups of learners discussed socio-scientific issues (SSI) call "coastal area utilization" to investigate whether the complexity and perspectives of discussion performance, and the acceptance of technology between two groups of learners have significant difference or not. In addition, gender is used as a background variable to investigate whether the complexity and perspectives of discussion performance, and the acceptance of technology between different genders have significant difference. The results of the study found compared with the control group using the general Moodle online discussion group, the experimental group using TAIFS to assist online discussion was significantly better than the control group in overall discussion performance, sub-item complexity and perspectives. In addition, when TAIFS assisted discussion, whether it was female or male learners, there was no significant difference in the overall discussion performance, sub-item complexity and perspectives. Indicating regardless of gender, when TAIFS assisted the discussion of learners can effectively improve the discussion performance. However, compared with learners who didn’t use TAIFS, among learners who had used TAIFS, female learners were more effective than male learners in improving perspectives. In terms of technological acceptance, the two groups didn’t reach statistically significant differences, but both showed generally high technological acceptance. In addition, the qualitative data analysis of the interviewees showed that the experimental group of respondents who used TAIFS generally felt that the overall discussion of real-time topics, the proportion of group discussion topics, and the internal and external search function can effectively help learners to discuss issues from different perspectives. Finally, based on the research results, this study puts forward suggestions for optimizing the TAIFS system, optimizing the Moodle discussion area, and research directions that can be further explored in the future. On the whole, this study integrates technologies such as discussion learning, guidance strategies of discussion, natural language processing, and data visualization to provide an innovative and effective learning tool, TAIFS, that assists online discussion with technology to contribute to promote online discussion performance of digital learning.
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描述:	碩士國立政治大學圖書資訊與檔案學研究所 106155003
資料來源:	http://thesis.lib.nccu.edu.tw/record/#G0106155003
数据类型:	thesis
DOI:	10.6814/NCCU202000307
显示于类别:	[圖書資訊與檔案學研究所] 學位論文

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