[pt] A presença social em um ambiente virtual de aprendizagem: uma proposta de análise à luz da Linguística Sistêmico-Funcional é um estudo de caso interpretativista dos elementos que contribuem para a co-presença (Goffman, 1963) e para a representação do eu (Goffman, 1959/2009) em um contexto pedagógico on-line. Adotando uma visão Sistêmico-Funcional da linguagem (Halliday, 1994), a tese analisa, pelo viés das variáveis Campo, Modo e Relação (Halliday e Hasan, 1989) e da Teoria da Valoração (Martin, 2000), 510 textos escritos por treze professores de idiomas em um curso de dez semanas no TelEduc sobre a produção de material digital. O corpus contém amostras coletadas em três ferramentas: perfil, fórum de discussão, e portfólio. A tese propõe um modelo teórico-metodológico que engloba o estudo das funções discursivas, dos recursos para aproximar a escrita da fala, das escolhas lexicogramaticais referentes a Participantes e Processos, além de manifestações de Afeto, Julgamento e Apreciação. Contempla, também, uma categorização dos tipos de mensagens e como estas se relacionam para formar conversas, ou cadeias, entre os participantes. O estudo aponta que o perfil é o único espaço em que há apenas uma ação social (se apresentar ao grupo). Nos fóruns e portfólios, nos quais há seis outras ações, os pedidos de ajuda e os oferecimentos de soluções ou de apoio moral são as ações mais frequentes, seguidas pelo provimento de feedback sobre as atividades dos colegas nos portfólios. Esse resultado sugere que a natureza prática do curso faz com que as reflexões sobre as leituras e as atividades-modelo, apesar de obrigatórias, fiquem em segundo plano. Há também mensagens que visam somente à socialização (pedidos de desculpa, por exemplo), à autoavaliações, e à descrição das atividades nos portfólios. Dependendo do Campo e da ferramenta, essas ações são mais comumente realizadas de modo independente, gerando textos orientados para um único propósito comunicativo (amostras de Campo simples), ou são combinadas (amostras de Campo combinado), gerando textos com propósitos múltiplos, principalmente visando a salvar a face do autor. Para construir um senso de comunidade, muito contribuem a função discursiva identificar-se com o outro e os recursos que tendem a emular a fala, o que torna a escrita mais pessoal e interativa. A visão dos sujeitos se faz presente na tese por meio das opiniões coletadas em dois questionários on-line e em uma entrevista via email. O cruzamento dos comportamentos linguísticos e das opiniões dos participantes revela que há alguns desencontros entre o que se espera e o que acontece no espaço de interação, especialmente no que tange o provimento de respostas nos fóruns, verificável pela análise das funções perguntar e questionar, e o conteúdo apresentado nos perfis, verificável pela análise das funções discursivas que estruturam os mesmos. Essas evidências apontam para possíveis implicações pedagógicas, as quais podem requerer revisões de práticas docentes e discentes nos cursos on-line. / [en] Social presence in a virtual learning environment: an analysis proposal in light of Systemic Functional Linguistics is an interpretive case study of the elements which contribute to co-presence (Goffman, 1963) and to the presentation of the self (Goffman, 1959/2009) in an online pedagogical context. Adopting a Systemic Functional view of language (Halliday, 1994) and drawing on the study of the variables Field, Tenor and Mode (Halliday and Hasan, 1989) and Appraisal Theory (Martin, 2000), this thesis examines 510 texts written by thirteen language teachers in a ten-week-course held in TelEduc, whose aim was to enable participants to produce digital teaching materials. The corpus contains samples that are representative of the linguistic exchanges in the students’ profiles, forum messages and portfolio messages. The theoretical and methodological framework of the study encompasses the discursive functions which make writing more interactive, specifically, the resources that simulate speech in the written mode and the students’ lexicogramatical choices as regards Participants and Processes as well as expressions of Affect, Judgment and Appreciation. The study also categorizes the types of messages posted and analyzes how they relate to one another to form conversations (chains) between participants. The study shows that the profile is the only tool in which there is a single social action. In the eleven forums and in the 13 portfolios, where six other actions take place, requests and offers for help or moral support are the most frequent, followed by feedback on the activities designed by colleagues. This suggests that the practical nature of the course makes the reflections on the readings and model activities less frequent, despite being compulsory. There are also messages whose objective is just socialization (apologies for example), selfassessment, and description of the activities posted on the portfolios. Depending on the Field and the tool, these actions are most commonly performed independently, generating single communicative purpose texts (Simple Field samples) or they may be combined, for example, an apology, a reflection and evaluation in one text (a Combined Field sample). Authors use this kind of combination mainly so that they can save face. The discourse function identifying with peers and the resources used for simulating speech, which make writing more personal and interactive, greatly contribute to build a sense of community. The participants’ perceptions, collected in two online questionnaires and in an email interview, provide further information that complements the linguistic study of the participants’ realization of social action. The triangulation of the linguistic behavior observed and the participants’ opinions shows that there are some mismatches between what can be expected from the survey of the literature and what happens in the online space of interaction. In particular, the triangulation highlights the expectation of answers in the forums, detected through the analysis of the discursive functions asking question and questioning, and the content of the profiles. Such evidence points to possible pedagogical implications, which could involve a review of practices in online courses.

Learning to speak a foreign language (L2) can be a challenging feat, made all the more challenging when done in only 50 minute, daily increments in class. Oral asynchronous computer-mediated communication (ACMC) provides learners with opportunities to practice spoken communication and evaluate their practice outside the classroom. In this dissertation, I explore methods for classroom integration of oral ACMC, linguistic traits developed in previous oral ACMC studies, methods for determining the effectiveness of oral ACMC, learner beliefs about the effectiveness of oral ACMC activities, and the effects of learners' deliberate practice in a series of oral ACMC activities on 3 measures of L2 fluency. In my first article, a literature review, I found that most studies on this topic focus on the linguistic traits of accuracy, fluency, and pronunciation, and determine L2 growth from oral ACMC activities through learner perceptions of L2 growth not relying on objective measures. In my second article, I analyzed the fluency change of learners who participated in a series of video recording and feedback activities. I found that, although there were few significant results, the activities may be of some benefit to learners in improving their spoken fluency. I also found that structural equational modelling may be of more value for researching classroom-based activities than t tests and regression models. In my third article, I investigated the experiences of several learners who participated in the video recording activities described in article two. Based on these learner experiences, I provided key considerations for designing asynchronous video recording assignments. The three articles included in this dissertation will be valuable in highlighting key factors related to the design, development, research, and effective use of oral ACMC activities in foreign language classrooms.

This dissertation investigated the effects of instructor's self-disclosure using the Facebook social networking online platform on students' motivation types, attitudes, and performance in the course. The participants were 104 beginning French students enrolled in an online French course at a research one university in the southeast U.S. The participants were divided into a Facebook group, where they could access the instructor's Facebook profile throughout the semester, and a control group. Demographic data about the participants were gathered through a background questionnaire. Two instruments were used for determining respectively the types of motivation exhibited by students and their attitudes toward the course and its instructor. An open-ended exit questionnaire provided qualitative data about the participants' experience in the study. The results indicated that participants in the Facebook group experienced a significant shift in motivation type that research has determined as being beneficial for language learning. No such shift occurred in students assigned to the control group. However, there was no significant difference in attitudes toward the course and its instructor between the two groups. Furthermore, there was no significant difference in performance between the two groups. Qualitative data suggests that participants in the Facebook group were more inclined to relate with the instructor whereas participants assigned to the control group were more hermetic to the idea of instructor's self-disclosure through Facebook.

Globalisation is increasing, reason for people working more and more cross-culturally and with the use of computer-mediated tools. The field of research on both of these individual topics is existent and has thoroughly been discussed. Nevertheless, the integration of these topics in the field of research is still scarce and relatively unknown. The purpose of this study is therefore to understand the communication issues that arise between people from different cultures when interacting through textual computer-mediated communication tools, and how these issues are dealt with. These communication issues and their consequences will therefore be identified and investigated, in order to get a better understanding of what this entails. A qualitative study has been done to fulfil this purpose. Data has been collected through nine semi-structured interviews with people from different locations around the world. With this way of data collection, the focus lied on extracting the perspectives of the individuals on these topics. Thereafter the data has been analysed according to seven steps for a grounded analysis, in order to create a theory. The results of this study have shown that there are mainly three communication issues arising from the use of textual computer-mediated communication tools across cultures. These issues are named as linguistic barriers, cultural differences in communication, and the absence of nonverbal communication. It has shown that these issues have a significant impact on this type of communication, causing several consequences. The direct, negative consequences coming from these issues are the deterioration of professional relationships and a decrease in productivity. Next to these consequences, the study has shown that people also tend to develop certain counterstrategies against these issues. That is so to say, ways of minimising the negative impact that the issues have on the communication.

A growing body of research has compared the effects of explicit and implicit corrective feedback (CF) on L2 accuracy. However, L2 performance is not limited to accuracy. Fluency is another important aspect of L2 performance, but less is understood about its relationship with CF and CF explicitness/implicitness. This experimental study examined the effects of explicit correction versus implicit recasts on not only the accuracy but also the fluency of L2 speech during videoconferencing. Forty-eight lower-intermediate learners of English as a foreign language (EFL) were assigned to an explicit correction group, an implicit recast group, and a no-feedback group. Each engaged in eight picture description tasks with the researcher and received feedback according to the group they came from. Pre and posttests (immediate and delayed) of accuracy and fluency were conducted using additional picture tasks. Accuracy was measured by calculating the percentage of learners’ (a) error-free clauses and (b) error-free T-units. Fluency was measured by calculating the number of (a) syllables per minute and (b) meaningful syllables per minute. Statistical analyses included (a) two-way repeated measures ANOVAs with feedback type as the between-subject factor and time as the within subject factor, (b) Planned comparisons, which treated the two experimental groups as one group and compared their mean with the mean of the control group, (c) Bonferroni post hoc tests, which examined the pairwise differences, and where needed, (d) paired sample t-tests, which examined each group’s pretest-posttest differences. As for accuracy, planned comparisons showed that videoconferencing CF, irrespective of its explicitness/implicitness, improved accuracy. Further analyses showed that whereas the explicit correction group outperformed the control group on both the immediate and delayed posttests, the recast group did not. However, the explicit feedback group produced a significantly less fluent speech compared to the recast group and the control group. But this was true on the immediate posttest and not on the delayed posttest. Pretest-posttest comparisons further indicated a negative effect for explicit correction but a positive effect for recasts on L2 fluency. The results suggest that (a) while explicit correction assisted accuracy, it negatively influenced fluency, and (b) while implicit correction seemed to assist fluency, it was not as effective as the effect of explicit correction on L2 accuracy. Further analyses indicated that the explicit correction group exhibited a large amount of monitoring behaviour on the immediate posttest, whereas the other two groups did not. The results are explained using an information-processing perspective of language performance and a knowledge proceduralization model of language development. The theoretical, empirical, and pedagogical implications are also discussed. / Graduate

This thesis aims to contribute to the field of interaction design by exploring the use of nonverbal cues in FTF communication with the aim of generating knowledge that can be used as an alternative approach for assessing and designing text-based CMC media. To achieve this goal, movement in is analysed in the nonverbal and collaborative dimensions of FTF communication. This presents the possibility to assess text-based CMC media based on a better understanding of the use of nonverbal cues and FTF communication as a standard. The assessment and design based on this concept is tested in the design phase. This process provides a platform for discussion and evaluation of an alternative approach for designing text-based CMC media with a focus on interaction between communicators.

This research examines escalation of commitment in capital investment decisions and the extent to which it can be mitigated using a cognitive prime. Specifically, I examine the use of a cognitive prime as a way to mitigate escalation in three decision-making settings: (1) individual, (2) face-to-face team, and (3) computer-mediated team. Continued investment in failing projects is costly for firms. The use of a cognitive prime to reduce escalation would provide a low cost way to mitigate escalation. In this study, participants are primed to think about sunk costs. The expectation is that priming individuals to think about sunk costs will increase the accessibility of sunk cost knowledge and reduce the likelihood of continued investment in the failing project. Further, based on Persuasive Arguments Theory, it is expected that the prime will reduce escalation in teams communicating in a computer-mediated setting more than in any other decision setting. The results of the experiment support the prediction that priming will reduce escalation and did so in all decision making settings. Further, the results indicate that, in the computer-mediated setting, primed teams had the least amount of escalation behavior coupled with the largest difference in escalation compared to teams that were not primed.

Adolescents are adopting computer-mediated communication (CMC) at a higher rate than any other age group, with CMC becoming integral to their social relationships. This is particularly significant given the role peer relationships play in adolescent mental health. The purpose of this quantitative, quasi-experimental study was to explore the relationship between adolescent CMC and social anxiety. The research was guided by Erikson's theory of psychosocial development and Kock's media naturalness theory. This multiwave panel study included a convenience sample of 58 adolescents ages 11 to 18. Surveys were completed on participant's social skills and introversion, and daily data were gathered on CMC, face-to-face communication, and social anxiety. Three regression models were produced from each day's data. Results indicated a modest relationship between daily CMC and social anxiety. Results also indicated CMC users with lower social skills or higher in introversion may be at greater risk for social anxiety. Lower face-to-face communication was also found to be related to increased social anxiety in CMC users. Findings may be useful to researchers seeking to identify specific populations who are at greater risk for negative outcomes in CMC use. Findings may also be useful to clinicians, educators, and parents interested in CMC's role in adolescent mental health or its impact on the quality of adolescent peer relationships.

Research suggests that Internet and cell phone overuse may result in lower levels of social skills and encourage isolation from peers. Less clear is whether the duration of computer-mediated communication (CMC) influences adolescent perception of their social skills competency or emotional health. This research was guided by the social cognitive theory, which suggests that social self-efficacy (SSE), the belief that they have the skills to engage successfully with others in conversation and social activities, develops from mastery experiences that regulate thought, motivation, and action. This quantitative cross-sectional survey design utilized a convenience sample of 49 adolescents ages 11-19, living in Austin County, TX, to examine the impact of CMC duration on adolescent SSE, social anxiety, and depression. Regression analyses indicated CMC duration did not significantly affect SSE, social anxiety, or depression at the p <. 05 level. Computer-mediated communication duration did influence SSE at the p = .07 level, suggesting a trend toward statistical significance. Post hoc analysis revealed a significant interaction at the p < .05 level when CMC restriction severity was tested as a moderator in the CMC duration-SSE relationship. These findings suggest that the interaction between CMC duration and restrictions may influence social self-efficacy. Additional research on the relationship between CMC and adolescent psychosocial health would be helpful, particularly using larger and more generalizable samples. This study may inform the efforts of authority figures to adolescents, specifically, on the ways in which technological changes affect adolescent social development and will help to ensure that adolescents are safe, psychologically healthy, and able to maintain healthy relationships.

Understanding normative developmental patterns in romantic relationships within cultural-historical contexts is a vital research agenda, and contemporary relationships develop amid pervasive socio-technological advancements. The role of technology in relationship functioning is relevant as romantic relationships are among the most important types of relationships and technology may substitute proximity, a core imperative of the attachment system. This study described patterns of computer-mediated communication (CMC) in young adult romantic relationships. Specifically, we hypothesized that core relational and personality constructs were linked to participants’ interpretations and reactions to CMC. Participants were 97 college students who provided global scores for rejection sensitivity, attachment representations, relationship satisfaction, and data about CMC with their romantic partner. Participants were prompted twice daily for two weeks to respond to questions assessing the nature and reaction to their most recent CMC with their romantic partner. Participants used texting more than any other CMC and communicated with romantic partners more than all others combined. Participants’ high relationship and communication satisfaction remained relatively constant. The 97 participants completed 1,616 mobile responses. Reported response latency was higher for men than women. Significant negative correlations emerged between interaction ratings, rejection sensitivity, and both insecure attachment dimensions. Regression analyses revealed only main effects for response latency and insecure attachment in predicting interaction ratings for women. No significant interactions emerged between response latency and attachment/response latency. For men, insecure attachment representations and rejection sensitivity demonstrated direct effects on interaction ratings. Avoidant attachment and response latency demonstrated a statistically significant interaction. Response latency and the interaction rating were negatively related only for men who scored low in avoidance. This study contributes to the body of literature assessing outcomes and qualities of romantic relationships in emerging adulthood. Technological communication is a key feature of young couples’ communication and appears more prevalent in romantic relationships than other relationships. Additionally, core relational and personality characteristics are substantially correlated to interpretations of momentto- moment interactions via technology.