Despite the growth in the size and acceptance of distance education, there have been persistent criticisms of this form of education because it often fails to provide for interaction among students and between students and instructors. Without this, it is suggested, distance education can only be an inferior imitation of the best face-to-face education because learners are unable to clarify and challenge assumptions and to construct meaning through dialogue. Some critics believe distance education's inability to reproduce a critical dialogue among students and between students and instructor can be addressed through the use of two-way communication technologies such as text-based, asynchronous (i.e., not in real time) computer conferencing. Appropriately-designed computer conferencing, it is argued, will facilitate interaction among students and between the instructor and students thus making distance education more appropriate for the higher-level cognitive goals of college and university education. At the same time, using this' technology will retain the flexibility of time and place-independence that is characteristic of distance education. The literature on educational computer conferencing is replete with references to its potential to create a new paradigm of education characterized by interactive group knowledge-building and critical thinking, but there are few empirical studies that have substantiated this view. Little is known about how and why learners participate and what factors may affect their participation. Similarly there has been little empirical study of the quality of computer conferencing interaction. This case study of a university-level course delivered by computer conferencing was designed to address these issues. It was guided by two purposes: 1) to determine whether the quantitative and qualitative dimensions of participation in this online course were consistent with key aspects of the new paradigm of networked learning as articulated in the literature, that is, if students were actively participating, building on each others contributions and thinking critically about the discussion topics; and 2) to determine what factors affected student participation and critical thinking. The results of this study suggest that some of the claims about the potential of this technology to transform conventional and distance education may be overstated. The emergence of a dynamic and interactive educational process that facilitates critical thinking was shown to be contingent on a variety of factors. The results suggest, however, that with the appropriate course design, instructor interventions, content, and students, computer conferencing can be used for these purposes and should be given serious consideration by distance educators as a way of facilitating interaction and critical thinking in distance education. / Education, Faculty of / Educational Studies (EDST), Department of / Graduate

Bakgrund: Digitala vårdmöten är något som används mer och mer, särskilt i samband med COVID-19 men även i enlighet med olika mål för digitalisering. Videomöten har visat sig fungera ganska bra som alternativ till vanliga besök och telefon, men det saknas en bild av hur just fysioterapeuter upplever digitala möten.  Syfte: Att undersöka fysioterapeuters upplevelser och erfarenheter av digitala vårdmöten jämfört med traditionella fysioterapeutbesök inom primärvården. Metod: Studien har en kvalitativ design. Data samlades in genom 5 semistrukturerade intervjuer med fysioterapeuter och analyserades med hjälp av kvalitativ innehållsanalys.  Resultat: Analysen av intervjuerna resulterade i 6 kategorier och 15 underkategorier. Kategorierna var; Digitala möten kan underlätta för patienten och fysioterapeuten, Fysioterapeutens arbete utvecklas och anpassas under pandemin, Utmanande att få till bra digitala möten, Möjligheter med digitala möten, Begränsningar med digitala möten och Förbättringspotential. Konklusion: Digitala vårdmöten inom fysioterapi skulle kunna vara ett alternativ för patienter som är intresserade och för besök som innefattar samtal, observation, rådgivning, träning och uppföljning, och där det inte krävs en mer ingående manuell undersökning. Digitala möten kan underlätta för både patienten och fysioterapeuten, men fortsatt utveckling av teknik och tillgänglighet behövs för att ytterligare förbättra patientarbetet. / Background: Digital healthcare consultations is something used more and more, especially during COVID-19 but also in accordance with various goals for digitization. Video consultations has proven to work well as an alternative to regular visits and telephone calls, but there is no clear view on how physiotherapists experience digital meetings.  Objective: To investigate physiotherapists' experiences of digital care meetings compared to traditional physiotherapist visits in primary care.  Method: The study has a qualitative design. Data was collected through 5 semi-structured interviews with physiotherapists and analyzed using qualitative content analysis.  Result: The analysis of the interviews resulted in 6 categories and 15 subcategories. The categories were; Digital meetings can make it easier for the patient and the physiotherapist, The physiotherapists' work is developed and adapted during the pandemic, Challenging to get good digital meetings, Opportunities with digital meetings, Limitations with digital meetings and Potential for improvement. Conclusion: Digital care meetings in physiotherapy could be an alternative when patients want it and for visits including conversation, observation, advice, training and follow-up, and where there is no need for a more thorough manual examination. Digital meetings can make it easier for both the patient and the physiotherapist, but further development of technology and accessibility is needed to improve the work with the patient.

This study examined online collegiate instructors’ perceptions of web-conferencing as an online instructional tool and as a tool for creating social presence and teaching presence and their perceptions of barriers discouraging them from using web-conferencing in online instruction. Adopting a quantitative survey research design, this study collected and analyzed survey data from 62 instructors who facilitated online instruction at a major university in northeastern Mississippi. The researcher developed the Assessment of Collegiate Instructors’ Perceptions of the Use of Web-Conferencing for Online Instruction questionnaire and administered the questionnaire via Survey Monkey to collect data of the participants’ demographic information and their perceptions about web-conferencing. Four research questions guided this study. Descriptive statistical analysis using frequencies, percentages, means, and standard deviations, independent samples t-tests, and a Mann-Whitney U test were used to analyze the data to answer the research questions. The results of this study revealed that collegiate instructors who use web-conferencing in their online instruction have a better perception of web-conferencing as an instructional tool and as a tool for creating social and teaching presence than instructors who do not use web-conferencing. This study also shows that online collegiate instructors using web-conferencing have lower perceptions regarding barriers of using web-conferencing than those not using web-conferencing. In addition, the results from the study indicated that gender affects online collegiate instructions’ perceptions of web-conferencing as an instructional tool and as a tool for creating social and teaching presence, with female instructors having better perceptions than male instructors. The findings from this study contribute to the literature of online instruction and web-conferencing research by providing empirical evidence supporting Rogers’ (1995; 2003) innovation diffusion model and pointing out the directions for future efforts to promote online collegiate instructors’ adoption of web-conferencing. Based on the findings, this study made recommendations for future research and for facilitating adoption of web-conferencing by online collegiate instructors.

This paper architecturally describes the switching portion of a digital communications system that is dedicated to conferencing. The basic ideas and methods of circuit switching and packet switching are introduced. The conferencing function is described, and some resulting design considerations are discussed. The architecture of the switch is then presented. Circuit switching techniques are used throughout the architecture of the switch, coupled with arithmetic processing to accomplish the conferencing function. The architecture is developed in such a way that it is expandable in all directions to meet a given set of requirements. The requirements include the number of users the system supports and the number of conference channels provided. The processing stages of the switch can be sized based on these requirements and the chosen component speeds. The basic timing of each stage is given to describe its operation and establish the critical delay paths. The resulting switching methods first introduced. The switch is also tested to see if it fits the criteria for being a distributed processing system. It is concluded that if the provision for dynamic reconfiguration is added, the switch fits the criteria. Finally, further topics of study are suggested.

In 1984, Stephen North said of writing center research: "There is not a single published study of what happens in writing center tutorials" (433). In the eighteen years since then, writing center practitioners and scholars have produced impressive research and development work, but few empirical studies have added to the sub-field of computer-mediated writing conferencing, though there are more than 300 online writing labs, OWLs, listed on the National Writing Centers Association website. This study started with the understanding that there are significant behavior, communication, and tutoring technique differences between online tutoring and face-to-face tutoring that can affect tutor training, which the research from the fields of computers and composition, computer-mediated communication, and writing centers shows. The purpose of this research was to describe the nature of the online writing lab tutorial. Qualitative analysis was used to prepare a full picture of the online tutoring sessions of three tutors over a six-week period in the Radford University Writing Center. The researcher took the role of participant/observer/interviewer for the sessions. Interviews and talk during conferences with the tutors, were transcribed, coded and contextualized, adding to the understanding of the tutor?s online work. Using a functional analysis model created by Gere and Abbott (1985) and applied by Hewett (1999), transcripts of the tutorial conferences were divided by linguistic idea units and coded according to function, intent, and consciousness. Additionally, a coding scheme was created out of the interview transcripts and from the tutorial responses of this study that focused on the technical and social aspects of the online conferencing, which helped objectify the nature of computer-mediated conference. / Ph. D.

Advancements in computer technology are making video conferencing a viable communication medium for desktop computers. These same advancements are changing the structure and means by which information workers conduct business. From a human factors perspective, however, the study of new communication technologies and their relationships with end users presents a challenging research domain. This study employed two diverse research approaches to the problem of reduced video frame rate in desktop video conferencing. In the first study, a psychophysical method was used to evaluate video image quality as a function of frame rate for a series of different scenes. Scenes varied in terms of level of detail, velocity of panning, and content. Results indicate that for most scenes, differences in frame rate become less detectable above approximately 10 frames per second (fps), suggesting a curvilinear relationship between image quality and frame rate. For a traditional conferencing scene, however, a linear increase in frame rate produced a linear improvement in perceived image quality. High detail scenes were perceived to be of lower quality than the low detail scenes, while panning velocity had no effect. In the second study, a collection of research methods known as ethnography was used to examine long-term use of desktop video by collaborators in a real work situation. Participants from a graduate course met each week for seven weeks and worked on a class project under one of four communication conditions: face-to-face, 1 fps, 10 fps, and 25 fps. Dependent measures included interviews, questionnaires, interaction analysis measures, and ethnomethodology. Recommendations are made regarding the utility and expense of each method with respect to uncovering human factors issues in video-mediated collaboration. It is believed that this research has filled a significant gap in the human factors literature of advanced telecommunications and research methodology. / Ph. D.

This research revolves around the rapidly evolving computer-based conferencing technology and the growing need for applications tailored for collaborative environments. It focuses on tools for collaborative processes using an existing software application — CyberQuest as a case study. CyberQuest is a problem solving and innovation support system its main intent being - to help people come up with ideas and with ways to implement them. The objective behind this research is to illuminate the need for desktop based tools for online conferencing, which do more than just audio-video linking and is more than just a simple Internet based "meeting" software. It aims at analyzing the existing CyberQuest software and outline the methodology to be followed to convert it to a Web-based tool for problem solving and innovation support. Chapter 1 describes the existing features of CQ and the reasons as to why this application is suited for adapting to a network environment such as the Internet or an in-company intranet. It elucidates the steps involved in converting CQ to a Web based application and briefly describes the process of how files are processed on the Web. Chapter 3 gives a brief introduction to the Internet and the Web and distinguishes between the two. It also explains what intranets are and the main constituents of a web system. Chapter 4 and 5 explain the conversion issues in detail and list the various scripting languages available and the process of translating the application from Visual Basic into a scripted language. Chapter 6 surveys the results of using an application sharing software to share CQ over 2 or more computers. Lastly, Chapter 7 lists the findings and the future direction of all that is discussed in this study. When fully developed, WebCQ (Web-enabled CyberQuest) would most certainly prove to be a valuable tool for enabling technology that will support collaborators in different disciplines by connecting them to a vast database of information to help them find solutions and improve performance in almost any field. The study also includes a set of re-designed user interfaces for the WebCQ. / Master of Science

This project delves into the role of American churches, notably the United Methodist Church (UMC), in perpetuating a segregation mindset and normalizing whiteness. The UMC's efforts toward a beloved community, exemplified by the Cross-Racial/Cross-Cultural (CR/CC) appointment, are scrutinized, emphasizing the need to confront racial and cultural challenges to prevent erasure, silencing, and assimilation by underscoring the importance of recognizing and addressing these issues for collective well-being, encapsulated in the principles of honoring, communication, and integration. Introducing the concept of re(de)fined and rethought Christian Conferencing, the project emphasizes the integration and honoring of diverse narratives, particularly through the Transformative Community Conferencing framework. Based on a narrative mediation approach, this framework seeks to challenge the pervasiveness of white cultural norms within the UMC, promoting collaboration between predominantly white congregations and clergy from non-white backgrounds. The project explores the transformative potential of this framework, stressing the importance of active engagement and concrete actions for genuine transformation in local UMC congregations, with a case study at Pound Ridge Community Church.

This study examines and describes the nature of questioning moves used by two exemplary fourth-grade teachers during reading instruction. Questioning moves are defined in this study as the ways in which teachers use scaffolding questions to engage students in talk about text. Another point of interest in this study was to determine how teachers perceive the influence of instructional materials on the language they use to engage students in talk about text. This study was situated within a constructivist paradigm of inquiry and drew from the case study tradition for its design. Naturalistic methods of data collection were employed including transcripts of teacher and student talk, field notes, videotapes, and interviews with the teachers. Data analysis was conducted in two stages. First data were analyzed separately within each case to locate emerging patterns to build each teacher's profile. Then data were juxtaposed for the purpose of comparison to illuminate similarities and differences in patterns that cut across cases. In general, results show that while questioning moves used by exemplary fourth-grade teachers are different, they are simple and subtle. The questioning moves used provided scaffolding for the purpose of increasing the students' responsibility for constructing meaning from text and signaled teachers' high expectations in their students' ability to read and interact with text. Teachers' use of questioning moves was determined by the instructional focus and hinged on the nature, intensity, and support of their professional development opportunities and experiences. Additional findings, indirectly related to teachers' use of questioning moves, and the influences on their use, were themed around the nature of attention that teachers gave to their classroom environment and instructional design. Implications of the results of this study for reading teachers and educators are themed around issues of professional development and time.

Abstract Older adults with complex memory problems benefit when they have the opportunity to consult with a specialist for a comprehensive cognitive assessment. Specialists such as geriatricians, psychogeriatricians or neurologists often work in major cities or large metropolitan towns. Travelling to see a specialist either alone or with a carer is complicated for an older person because of medical issues or disability. The use of videoconferencing may provide a way to link a specialist with a patient without the need for the patient, or the specialist, to travel long distances. Two literature reviews were carried out. The initial review identified studies of the diagnosis of cognition via telemedicine. Thirty-two studies were identified which assessed cognition via telephone or video conference. The focus of the study was either the administration of a standardised cognitive assessment tool (n=30) or an unstructured comprehensive cognitive assessment interview (all via video conference) (n=2). The sample sizes were small but the levels of agreement were high, suggesting that further work in this area may identify that diagnosis of dementia via video conference is reliable. There has been limited work in the area of diagnostic agreement when a specialist is assessing a patient for the first time via video conference, even less work in the area of mental health assessment of older people. The second literature review identified 19 studies of diagnostic agreement using video conference with a sample size of 20 or more. The fields of research were: Dermatology (n=10); Mental Health (n=4); Minor Injuries (n=2); Neurology (n=2); and Rheumatology (n=1). Of the four studies in the area of mental health, one focused on the diagnosis of dementia with the publication of a protocol for assessing Alzheimer’s disease (AD) via video conference. The review highlighted that diagnosis via video conference in other medical fields had been shown to be reliable but that limited work was evident regarding the reliability of diagnosing dementia via video conference. A range of statistical analyses have been used to measure agreement in studies of diagnosis via VC. Overall Proportional Agreement (Po) and Cohen’s kappa (K) are the two most common calculations. There was little uniformity of reporting in the studies identified in the literature review. The variation in reporting made it difficult to compare results or provide data for a meta-analysis of similar studies. Consideration of the methods for analysing diagnostic agreement was undertaken using the approaches identified in the literature review as a starting point. The aim of this research was to identify if a diagnosis of the presence of dementia in an older adult by a specialist is reliable when the assessment interview occurs via video conference. A pilot study was carried out prior to the implementation of a National Health and Medical Research Council (NHMRC) funded multi-site project to test inter-rater agreement for the diagnosis of dementia and subsidiary questions. The candidate is a Chief Investigator (CI) on the NHMRC project grant and participated in writing the grant submission. A pilot study was completed for the purpose of refining the research protocol and establishing preliminary data for the calculation of sample size. A geriatrician carried out a cognitive assessment via video conference with the patient and the carer. The doctor had access to the patient’s chart and the results of a battery of standardised cognitive assessments administered face-to-face (FTF) by the clinic nurse earlier in the day. A second interview was carried out, face-to-face, by a second doctor on the same day. Inter-rater reliability was assessed between doctors. To place the level of agreement in context, inter-rater reliability between paired face-to-face assessments was also measured. Forty-two participants were divided into two groups: paired face-to-face assessments (FF, n=22) or paired video conference and face-to-face assessments (FV/VF, n=20). Twenty-two participants were male. Their average age was 70 years (SD=11.1, Range 50-90). The mean Standardised Mini-Mental State Examination (SMMSE) score was 23.93 (SD=5.42, Range 8-30)[1]. The outcome of agreement was measured using PO and Cohen’s K. FF group (PO=0.636; K=0.430, p=0.005) and the FV/VF group (PO=0.650; K=0.650, p=0.004) showed similar levels of agreement. The main study was a non-inferiority, prospective cohort study following a similar format as the pilot. Patients were randomised to two groups. The first group participated in two interviews; one via VC, the other was face-to-face (FV/VF). The second group was subjected to dual face-to-face assessments (FF). The video conference interview consisted of real-time video conference with the doctor interacting with both the carer and the patient. A battery of standardised assessments, a medical history, imaging and blood tests were prepared before hand and available to the doctor for use in the interview. One hundred and fifty-five participants were divided into two groups: paired face-to-face assessments (FF, n=73) or paired video conference and face-to-face assessments (FV or VF, n=82). Seventy-five of the participants were male. The average age was 76-years (SD=9, Range 54-95). The mean SMMSE was 23.8 (SD=4.4, Range 8-30). Overall proportional agreement (Po) and Weighted K were calculated as a measure of agreement for the presence of dementia. The FF group (Po=0.740; K=0.57, p<0.0001) and the FV/VF group (Po=0.780; K=0.64, p<0.0001) showed similar levels of agreement. Using the same study cohort, additional data were collected to identify the significance of the physical examination (PE) for diagnosing dementia. One of two doctors was allocated the task of completing a physical examination of the patient following initial assessment interview and after the diagnosis decisions had been recorded. Following the physical examination a second record of diagnosis decisions were recorded by the same doctor. The doctor was asked to identify if the diagnosis, formulation, treating options or additional investigations had altered as a result of the in-person physical examination. The physical examination supported clarity of the diagnosis particularly if a vascular element was involved. This dissertation provides evidence of the reliability of a diagnosis of dementia obtained via video conference. Furthermore, the work detailed in this dissertation represents the largest international study on assessing diagnostic accuracy of cognition and makes a significant contribution to the work in telemedicine in the area of mental health. This dissertation provides generalisations that can impact the use of video conference for diagnosis across a range of specialities, with the ultimate goal of improving access to specialist advice for people living in rural areas.