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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.
121

Connecting the links : socio-constructivism, historical thinking and online discussion forums

Blankenship, Whitney Gordon 02 February 2011 (has links)
This qualitative interpretive research study of students participating in online discussion forums explores how the socio-constructivist nature of online discussion forums fosters the development of historical thinking. The study also focuses attention on the development of the historical understandings of students as they participant in online discussion forums in particular significance, empathy and agency. Set within the context of discussion forums and framed by socio-constructivism and historical thinking, the study uncovered what it means for students to “do history” and how students construct their own historical narratives as they interact with their peers online. Data collection included transcripts of online discussion forums, interviews with participants and the collection of other related artifacts. Findings suggest that the online discussion forums facilitate socio-constructivism in the classroom by providing students with extended opportunities to engage with their peers ideas and assumptions. Additionally, the findings also conclude that students understanding of significance, empathy and agency are related to their interactions with both the official and unofficial curriculums and the temporal and physical proximity of examples to students lived experiences. / text
122

Degrees of abstraction in French and English generic nouns : an analysis of word association tasks

Hirsh, Timothy William 21 February 2011 (has links)
In language, there exists a distinction between abstract words and concrete words. It can be said that abstract words refer to generic concepts, while concrete words pertain to physical actions or objects associated with physical movement. With respect to the linguistic community, it is often claimed that French words function at a higher degree of abstraction than English words. However, this claim lacks empirical evidence. The present study aims to examine the usage of concrete and abstract words in word association tasks, which are part of Cultura: an intercultural, web-based project that brings foreign language students from different countries and linguistic backgrounds together in a telecollaborative exchange of ideas. Specifically, this study examines the degrees of abstraction of generic nouns in French and English. / text
123

Analyzing Cognitive Presence in Online Courses Using an Artificial Neural Network

McKlin, Thomas Edward 09 December 2004 (has links)
This work outlines the theoretical underpinnings, method, results, and implications for constructing a discussion list analysis tool that categorizes online, educational discussion list messages into levels of cognitive effort. Purpose The purpose of such a tool is to provide evaluative feedback to instructors who facilitate online learning, to researchers studying computer-supported collaborative learning, and to administrators interested in correlating objective measures of students’ cognitive effort with other measures of student success. This work connects computer–supported collaborative learning, content analysis, and artificial intelligence. Method Broadly, the method employed is a content analysis in which the data from the analysis is modeled using artificial neural network (ANN) software. A group of human coders categorized online discussion list messages, and inter-rater reliability was calculated among them. That reliability figure serves as a measuring stick for determining how well the ANN categorizes the same messages that the group of human coders categorized. Reliability between the ANN model and the group of human coders is compared to the reliability among the group of human coders to determine how well the ANN performs compared to humans. Findings Two experiments were conducted in which artificial neural network (ANN) models were constructed to model the decisions of human coders, and the experiments revealed that the ANN, under noisy, real-life circumstances codes messages with near-human accuracy. From experiment one, the reliability between the ANN model and the group of human coders, using Cohen’s kappa, is 0.519 while the human reliability values range from 0.494 to 0.742 (M=0.6). Improvements were made to the human content analysis with the goal of improving the reliability among coders. After these improvements were made, the humans coded messages with a kappa agreement ranging from 0.816 to 0.879 (M=0.848), and the kappa agreement between the ANN model and the group of human coders is 0.70.
124

Verbal irony comprehension for children and adolescents with high-functioning autism and Asperger's syndrome in computer-mediated communication

Agbayewa, Abiola S. 04 January 2011 (has links)
Children and adolescents with autism commonly struggle with social interactions. In particular, it has been found that children and adolescents with autism struggle with verbal irony in face-to-face interactions where there are many competing cues that require their attention (i.e., body language, facial expressions, intonation). This study made use of Bubble Dialogue (Cunningham et al., 1992), a form of computer-mediated communication, to examine how children and adolescents with high-functioning autism and Asperger’s syndrome (HFA/AS) comprehended verbal irony when these competing cues were removed from social interactions. Speaker attribute information has been shown to be beneficial in aiding typically developing children with successful verbal irony comprehension. In this study, participants with HFA/AS and matched typically developing participants were presented with Bubble Dialogue scenarios where speaker attribute was manipulated such that speakers were labelled as a peer, an adult, or without a speaker attribute label. Participants were presented with scenarios where the speaker made either an ironic criticism or a literal compliment in order to assess whether or not the information about the speaker influenced their comprehension and interpretation of speaker belief, speaker intent and speaker humour. Participants with HFA/AS provided responses along similar themes to their typically developing counterparts for both literal compliments and ironic criticisms in each speaker attribute condition. Participants with HFA/AS performed similarly to typically developing participants on their interpretations of speaker belief, speaker intent, and speaker humour. These findings suggest that, within the context of computer-mediated communication, children with HFA/AS are able to perform as well as typically developing participants on measures of verbal irony comprehension.
125

Understanding Remote Collaboration in Video Collaborative Virtual Environments

Hauber, Joerg January 2008 (has links)
Video-mediated communication (VMC) is currently the prevalent mode of telecommunication for applications such as remote collaboration, teleconferencing, and distance learning. It is generally assumed that transmitting real-time talking-head videos of participants in addition to their audio is beneficial and desirable, enabling remote conferencing to feel almost the same as face-to-face collaboration. However, compared to being face-to-face, VMC still feels distant, artificial, cumbersome, and detached. One limitation of standard video-collaboration that contributes to this feeling is that the 3D context between people and their shared workspace given in face-to-face collaboration is lost. It is therefore not possible for participants to tell from the video what others are looking at, what they are working on, or who they are talking to. Video Collaborative Virtual Environments (video-CVEs) are novel VMC interfaces which address these problems by re-introducing a virtual 3D context into which distant users are mentally "transported" to be together and interact with the environment and with each other, represented by their spatially controllable video-avatars. To date, research efforts following this approach have primarily focused on the demonstration of working prototypes. However, maturation of these systems requires a deeper understanding of human factors that emerge during mediated collaborative processes. This thesis contributes to a deeper understanding of human factors. It investigates the hypothesis that video-CVEs can effectively support face-to-face aspects of collaboration which are absent in standard video-collaboration. This hypothesis is tested in four related comparative user studies involving teams of participants collaborating in video-CVEs, through standard video-conferencing systems, and being face-to-face. The experiments apply and extend methods from the research fields of human-computer interaction, computer-supported cooperative work, and presence. Empirical findings indicate benefits of video-CVEs for user experience dimensions such as social presence and copresence, but also highlight challenges for awareness and usability that need to be overcome to unlock the full potential of this type of interface.
126

FACE TO FACE VERSUS COMPUTER-MEDIATED COMMUNICATION: COUPLES SATISFACTION AND EXPERIENCE ACROSS CONDITIONS

Perry, Martha 01 January 2010 (has links)
This mixed method study examined differences in how face to face (FtF) and computer-mediated communication (CMC) were experienced for individuals communicating with their romantic partner. Forty-four individuals (22 couples) engaged in discussions in both FtF and CMC conditions in a laboratory environment, measuring communication satisfaction as an indicator of experience. Eight couples were also randomly selected to participate in interviews and their reports were used to add depth to the analyses and further inform the findings. Participants reported similar levels of satisfaction across communication conditions, which extends previous literature suggesting that users are able to adapt to text-based channels of communication to a degree that naturalness similar to that of FtF is achieved. Analyses also indicated a positive relationship between attitudes towards CMC use and history of CMC use. This relationship is discussed in terms of symbolic interactionism theory. Communication satisfaction item analysis and interview reports suggest that couples have varying attitudes and uses for CMC. Some couples report a hesitancy to use CMC given the lack of non-verbal cues and risk of miscommunication while other couples report that CMC is helpful in facilitating de-escalation of conflict and allowing partners to communicate more effectively around sensitive issues.
127

“WHAT’S HAPPENING” @TWITTER: A USES AND GRATIFICATIONS APPROACH

Ballard, Corey Leigh 01 January 2011 (has links)
The uses and gratifications approach places power in the hands of the audience and is a helpful perspective when trying to understand media usage, exposure, and effects. However, while the uses and gratifications approach has been applied regularly to traditional media, research explaining why people use new social media networks as well as the gratifications they obtain from them is scarce at best. This thesis provides a comprehensive overview of the uses and gratifications approach as well as the current literature about social media networks. An argument is built within the thesis to study Twitter as one social media network through the uses and gratifications theoretical lens. Research questions are provided and a survey of 216 college undergraduates was conducted. Results show that people use a variety of Twitter functions, that the gratifications sought from Twitter are not the gratifications obtained from Twitter, and that people are careful about the types of information they share on the social media network. Additionally, results suggest that Twitter users obtain more gratifications from the passive functions of Twitter rather the active functions in terms of relational maintenance and entertainment. Limitations of the study and suggestions for future directions are also provided.
128

IN MY HUMBLE OPINION: TESTING THE SPRIAL OF SILENCE IN COMPUTER-MEDIATED AND FACE-TO-FACE CONTEXTS

Zuercher, Robert James 01 January 2009 (has links)
The purpose of this investigation is to further an understanding of the spiral of silence theory as it functions within both face-to-face (FtF) and computer-mediated contexts. Computer-mediated communication (CMC is often touted for being an empowering medium as it affords its users anonymity. This finding could have an impact on whether the spiral of silence occurs within CMC. Previous studies have relied upon hypothetical scenarios and have established weak support for the theory. Despite this study’s utilization of a within-subjects experimental design, however, no significant differences in minority opinion holders’ fear of isolation were found. Similarly, no significant relationship was found between minority opinion holders’ attention paid to news and fear of isolation. In regards to both majority and minority opinion holders, no significant differences in perceptions of opinions expressed in either condition were found. Reasons for such unexpected findings, as well as strengths, limitations, and directions for future research are discussed.
129

Verbal irony comprehension for children and adolescents with high-functioning autism and Asperger's syndrome in computer-mediated communication

Agbayewa, Abiola S. 04 January 2011 (has links)
Children and adolescents with autism commonly struggle with social interactions. In particular, it has been found that children and adolescents with autism struggle with verbal irony in face-to-face interactions where there are many competing cues that require their attention (i.e., body language, facial expressions, intonation). This study made use of Bubble Dialogue (Cunningham et al., 1992), a form of computer-mediated communication, to examine how children and adolescents with high-functioning autism and Asperger’s syndrome (HFA/AS) comprehended verbal irony when these competing cues were removed from social interactions. Speaker attribute information has been shown to be beneficial in aiding typically developing children with successful verbal irony comprehension. In this study, participants with HFA/AS and matched typically developing participants were presented with Bubble Dialogue scenarios where speaker attribute was manipulated such that speakers were labelled as a peer, an adult, or without a speaker attribute label. Participants were presented with scenarios where the speaker made either an ironic criticism or a literal compliment in order to assess whether or not the information about the speaker influenced their comprehension and interpretation of speaker belief, speaker intent and speaker humour. Participants with HFA/AS provided responses along similar themes to their typically developing counterparts for both literal compliments and ironic criticisms in each speaker attribute condition. Participants with HFA/AS performed similarly to typically developing participants on their interpretations of speaker belief, speaker intent, and speaker humour. These findings suggest that, within the context of computer-mediated communication, children with HFA/AS are able to perform as well as typically developing participants on measures of verbal irony comprehension.
130

A comparison of autonomous and collaborative models in computer-mediated communication

Phillips, Bruce 10 September 2007 (has links)
Traditional models of conversation treat the participants as autonomous; ideally, speakers convey information to listeners in alternating turns. In contrast, the more recent collaborative model emphasizes moment-by-moment collaboration between participants in dialogue (Clark, 1996). Two computer-mediated communication (CMC) experiments tested these models by questioning the utility of strict turn exchanges (a central feature of autonomous models) versus more flexible moment-by-moment collaboration (a central feature of Clark’s model). A novel feature of these experiments was the development of three new process measures that are relevant to the autonomous versus collaborative comparison. Conversational coherence was a quantitative measure of the adjacency of all semantically related utterances, that is, how well the conversation maintained an orderly sequence of topics. Collaborative topic development was a quantitative measure of how much participants built on one another’s ideas (versus contributing independently on separate topics). That is, to what degree did the conversations take the form of loosely related alternating monologues versus an integrated dialogue? The third measure assessed the contributions of listeners. Each process measure required detailed analysis of all messages in each conversation. Experiment 1 compared three CMC formats, ranging from highly autonomous to highly collaborative: IRC (Internet Relay Chat), in which participants compose and send messages independently; ICQ (I-Seek-You) with an imposed turn marker; and ICQ-free with no turn rules. Sixty University of Victoria students in 30 unacquainted dyads completed a brainstorming and a joint recall task in one randomly assigned condition. As predicted by the collaborative model, all dependent measures confirmed that the ICQ-free format was significantly superior to the IRC and ICQ-turn maker conditions. That is, the format without an imposed turn structure produced more coherent, more collaborative conversations, with higher performance scores and better task efficiency. Qualitative analysis revealed that, in the absence of familiar turn cues, the ICQ-free dyads used timing and text space to manage their interaction, which often did not involve strict turn taking. Experiment 2 was a replication and extension with two new communication conditions, a new measure of listener responses, and the use of three-person groups. In a within-subjects design, participants completed two tasks in a face-to-face (FTF) condition, the previous IRC condition, and an electronic bulletin board (BB) condition, which also imposed turn taking. These three conditions varied in the degree of reciprocity possible, with FTF permitting the maximum and fastest reciprocal interaction and BB the least and slowest. Twenty-seven University of Victoria students formed nine randomly assigned, unacquainted triads. Together, each triad completed a brainstorming task and a debating task with different topics in each condition. The results again showed that flexible moment-by-moment interaction was superior to the two formats that enforced turn taking. The FTF conversations were more coherent, with more collaborative topic development. Also, the rate of listener responses was significantly higher, indicating a higher rate of feedback to speakers, and the number of words used per turn was lower, suggesting more rapid turn-around (i.e., finer granularity). In sum, the FTF participants tightly intertwined their contributions to ensure understanding, maintain coherence, and develop their joint topics. Taken together, the results clearly support a collaborative model of conversation and raise new questions about the functional utility of strict turn taking. In both process and performance measures, the conditions that maximized collaboration were superior to those that favoured autonomous individual action. At the practical level, these results should inform the design of mediated communication systems by identifying the affordances that may help or hinder online interaction.

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