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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Acronyms in an Asynchronous Environment : A Corpus Study of Acronym Frequency in Online Discussion Forums

Viberg, Tomas January 2013 (has links)
This study is a research of the frequency of acronyms in an online forum and the meaning of the most frequent ones in their context. In the study, definitions are given for language forms used online so that one is able to compare a set of similarities and differences between these online varieties and the Standard English. The method consists of identifying and searching for a set of CMD-typical acronyms. These acronyms are taken from prior studies as well as from Crystal’s (2006:91f) list of known CMD-acronyms. The material is retrieved from an online forum of asynchronous communication, and the results show the frequency of the acronyms as well as discuss their meanings in context. The results indicate that acronyms are highly infrequent in asynchronous environments, and their use decreases from 2010 to 2013. The conclusion of this study is that the infrequency of acronyms in asynchronous environments may be due to the nature of asynchronous online communication, in which users have time to write their replies. When comparing this study’s corpora with studies on frequencies in synchronous environments, the acronym frequency in this study was lower than the frequency shown in the synchronous studies.
2

Learning text talk online : Collaborative learning in asynchronous text based discussion forums

Liljeström, Monica January 2010 (has links)
The desire to translate constructivist and sociocultural approaches to learning in specific learning activities is evident in most forms of training at current, not least in online education. Teachers worldwide are struggling with questions of how to create conditions in this fairly new realm of education for learners to contribute to the development of a good quality in their own and others' learning. Collaboration in forms of text talk in asynchronous, text based forums (ADF) is often used so students can participate at the location and time that suits them best given the other aspects of their life situation. But previous research show how collaboration in forms of text talk do not always evolve in expected quality, and how participation sometimes can be so low that no discussions at all take place. Perhaps it is time to move on and make use of the variety of user-friendly audio-visible technologies that offers conditions for collaboration similar to those in the physical environment? Is there any point to use ADF for collaboration, beyond the flexible opportunity for participation it allows? If so, why, how and under what conditions are it worthwhile to use ADF for tasks meant to be worked collaboratively on? These questions were the starting point of the studies in this thesis that was researched through two case studies involving different techniques and data samples of various natures, with the aim to understand more about collaborative text talk. The research approach differs from the vast majority of studies in the research field of Computer Supported Collaborative Learning (CSCL) where many studies currently are conducted by analysis of quantifiable data. The first case study was conducted in the context of non-formal learning in Swedish Liberal Adult Education online, and the second in the context of higher education online in Sweden. The studies in the thesis were made on basis of socio-cultural theory and empirical studies. Empirical data was collected from questionnaires, interviews and texts created by students participating in tasks that they jointly resolved through text talk. Some results were brought back to the students for further explanation of the results. Findings from data analysis were triangulated with other results and with sociocultural theory. The results indicate that students can create knowledge relevant to their studies through text talk, but can feel restrained or dismiss the activity as irrelevant if important conditions are lacking.  Collaboration through text talk makes individual resources accessible in a specific place where it can be observed and its validity for the purpose of the task evaluated by others. Students with good insight in what they are supposed to accomplish seem be able to consult relevant guidance for this evaluation, from teachers, textbooks, scientific articles and other valid experiences important to their studies, and thereby contribute to learning of the quality they studies are meant to produce. Text talk also increases teachers’ possibilities to identify what the guidance the study group needs when evaluating the gathered resources and through their own active participation provide support in the students “zone of proximal development”. Contributions offered to the CSCL research field is the identifications of important mechanisms related to learning collaboratively through text talk, and the use of case study methodology as inspiration for others to try also these kinds of strategies to capture online learning.
3

Kommunikation i storskaliga internetbaserade kurser : En kvalitativ studie om karaktären av den sociala interaktionen i diskussionsforum i xMOOCar / Communication in large-scale online courses : A qualitative study on the nature of social interaction in discussion forums in xMOOCs

Engquist, Malin January 2018 (has links)
Storskaliga, öppna, internetbaserade kurser (MOOCar) introducerades år 2008 av George Siemens och Stephen Downes och deras popularitet har ökat ända sedan dess. Förespråkare av MOOCar påstår att de har en potential att möjliggöra livslångt lärande för människor från hela världen. Sedan de första kurserna har två olika former av MOOCar utvecklats, cMOOCar som har utvecklats utifrån lärandeteorin konnektivismen och xMOOCar som är relativt lika vanliga internetbaserade kurser med den skillnad att antalet kursdeltagare är mer eller mindre obegränsat. År 2016 anslöt sig MOOC initiativet från KungligaTekniska högskolan (KTHx) till edX, en undervisningsplattform för xMOOCar. Möjlighet till social interaktion med andra kursdeltagare och lärare erbjuds på edX i form av asynkrona diskussions forum. Forskning om hur den sociala interaktionen ter sig i diskussionsforumen och dess potential för att främja lärande är i dagsläget knapp. Syftet med detta examensarbete är att undersöka den sociala interaktionenskaraktär i två olika xMOOCar, en med självstyrd studietakt och en lärarledd. En ökad förståelse för den sociala interaktionen som för nuvarande äger rum i diskussionsforumen kan vara behjälplig för lärare vid utformningen av undervisningen i xMOOCar. Diskussionsforumen för två kurser av respektive kategori av xMOOC från KTHx om matematik och programmering ingår i denna undersökning. Både en konventionell innehållsanalys och en riktad innehållsanalys baserad på lärandeteorin undersökande gemenskap (CoI) har genomförts för att belysa olika aspekter av den sociala interaktionens karaktär och främjande av lärande i diskussions forumen. Resultatet av undersökningen visar att den sociala interaktionen är opersonlig och att kursdeltagarna initierar interaktionen för att få svar på frågor som huvudsakligen lärare besvarar genom att instruera eller informera. Det bildas ingen gemenskap och det uppvisas lägre nivåer av kognitiv närvaro i diskussionsforumen. För att främja lärande skulle diskussionsforumen istället kunna användas för att engagera de aktiva kursdeltagarna i diskussioner och lärarnas fokus kan förflyttas från att instruera och informera till att etablera en trygg miljö för interaktion. / Massive Open Online Courses (MOOCs) were introduced in 2008 by George Siemens and Stephen Downes and their popularity has increased ever since. Advocates of MOOCs claim that they have the potential to enable lifelong learning for people all over the world. Since the first MOOC, two kinds of MOOCs have developed, cMOOCs that developed from the theory of learning, connectivism, and xMOOCs, which are relatively similar to usual online courses, with the difference that the number of participants is more or less unlimited. In 2016, the MOOC initiative from the Royal Institute of Technology (KTHx) joined edX, a teaching platform for xMOOCs. Opportunity for social interaction with other course participants and teachers is offered on edX in the form of asynchronous discussion forums. Research on the characterof the social interaction in the discussion forums and its potential for promoting learning in xMOOCs is currently limited. The purpose of this master thesis is to investigate the nature of social interaction in two different xMOOCs, one self-paced and one instructor-paced. An increased understanding of the current social interaction that is taking place in the discussion forums can be helpful to teachers in the design of teaching in xMOOCs. In this master thesis two discussion forums from courses of the respective categories of xMOOCs have been studied. Both a conventional content analysis and a directed contentanalysis based on the learning theory Community of Inquiry (CoI) have been conducted to highlight different aspects of the nature of the social interaction and how one may promote learning in the discussion forums. The result of the analysis shows that the social interaction in the discussion forums is impersonal and that the participants initiate the interaction by asking questions that are mainly answered by the teachers, by either instructing or informing. No community is formed and the discussion forums show lower levels of cognitive presence. In order to promote learning, discussion forums may be used to engage the active participants in discussions and it might be benificial if the teachers focused on establishing a safe environment for interaction, as opposed to focusing on instruction and informing.
4

Characterization of critical thinking indicators in problem-based learning online discussions of blended and distance undergraduate environmental science students using the community of inquiry model

Noble, Michael-Anne 31 August 2017 (has links)
This mixed methods study compared distance and blended undergraduate environmental students at Royal Roads University (RRU) as they participated in online asynchronous PBL case discussion forums as part of an Ecotoxicology course. This study examined the differences between distance and blended teams in their activity, approaches, and levels of critical thinking in an online PBL activity. Critical thinking was evaluated using the cognitive presence indicators of the community of inquiry framework developed by Garrison, Anderson and Archer (2001). An organization indicator was added to the framework to capture posts that organized the discussion forum layout or the team and the distribution of work. The use of the organization indicator in the thread map analysis revealed that teams adopted one of two approaches to the online PBL activity, either an organic approach or an organizational scaffold approach. An open coding approach to content analysis of the posts was used to develop two coding schemes to capture the use of learning scaffolds and degree of online collaboration respectively. These coding schemes were used to compare scaffolding and collaboration behaviours of distance and blended students during the online PBL activity. The study found that whether teams used the online discussion forums or face-to-face discussion as their primary communication method influenced both the timing and the critical thinking content of the online discussion forums. Student moderators’ choices influenced the structure and approach to the PBL activity, as well as the form of document assembly that was observed in the online discussion forums. The learning scaffolds coding scheme demonstrated that both distance and blended students were reading beyond the assigned reading list. Both distance and blended students appeared to develop skills in identifying information gaps over the progression of the PBL case problems as their observable level of critical thinking remained consistent as the problem scaffolding was faded. Although both environmental and non-environmental work experience may be used to scaffold team learning, they are used differently. Online PBL is a good fit for the Royal Roads University Learning and Teaching Model and may be used to provide some consistency across blended and online course content. / Graduate

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