Dimensions of educational transactions in a videoconferencing learning environment

Abstract

Moore's Theory of Transactional Distance suggests that dialogue, structure, and learner autonomy are the key elements delineating the educational transaction in distance learning environments. However, the conceptualizations of these concepts in a telecommunication era have not been systematically addressed. By investigating 121 learners’ experiences with videoconferencing, this study identified the dimensions (factors) constituting dialogue, structure, and learner autonomy in such a learning environment. Exploratory factor analysis using a principal axis factor method was carried out. It was concluded that each of these three concepts represented multi‐faceted ideas. Dialogue consisted of three dimensions: in‐class discussion, out‐of‐class electronic communication, and out‐of‐class face‐to‐face interaction. Structure contained the dimensions of course organization and course delivery. Learner autonomy was comprised of independence and interdependence. The results of this study can inform videoconferencing researchers and practitioners of the factors of the educational transaction that should be considered in videoconferencing courses.     

Challenging accepted wisdom: Looking at the gender and science education question through a different lens

This article reports on a research project designed to explore a group of women scientists' understandings of themselves and science. The project uses an unconventional methodology: - a mixture of conventional qualitative research methods and techniques developed for use in psychotherapy. Its preliminary results appear to contradict some of the assumptions on which much of past work on girls and science education is based. For example, we found that, for the women involved in this project, factors such as the presence in their lives of strong female role models and/or the use of 'girl-friendly' curriculum materials were not important in their decision to continue the study of science to university level. Other factors - some of which were quite unexpected - had a much greater effect. The article outlines the methodology of this project and some of its findings, and explores the implications of these findings for future work on the gender and science education question.     

Mapping Children’s Discussions of Evidence in Science to Assess Collaboration and Argumentation

The research reported in this paper concerns the development of children’s skills of interpreting and evaluating evidence in science. Previous studies have shown that school teaching often places limited emphasis on the development of these skills, which are necessary for children to engage in scientific debate and decision‐making. The research, undertaken in the United Kingdom, involved four collaborative decision‐making activities to stimulate group discussion, each carried out with five groups of four children (10–11 years old). The research shows how the children evaluated evidence for possible choices and judged whether their evidence was sufficient to support a particular conclusion or the rejection of alternative conclusions. A mapping technique was developed to analyse the discussions and identify different “levels” of argumentation. The authors conclude that suitable collaborative activities that focus on the discussion of evidence can be developed to exercise children’s ability to argue effectively in making decisions.     

Puppets Promoting Engagement and Talk in Science

Research into classroom interactions has shown that talk that promotes reasoning can help children in their learning of science. Such talk can only be generated when teachers are willing to take a dialogic approach that is stimulating and provides opportunities for children to articulate their ideas. This research set out to determine whether the use of large puppets would help teachers to change the nature of their whole class discourse to enhance children’s talk and engagement in science. The study was carried out with sixteen teachers of children aged 7–11 years in schools in London and Manchester, UK. Through adopting a mixture of research methods, including classroom observation and teacher and child interviews, the research provides evidence that the use of puppets significantly increases the amount of teacher discourse oriented towards reasoning and argument, and decreases the amount of talk that focuses on recall. Through the puppets, teachers also use more narrative to set the science in stimulating contexts, and encourage children in their contributions to whole class discussion. Interview data also show the positive effects of puppets on children’s motivation and engagement in science. The findings have led to further major funding for professional development in the use of puppets in the UK, and research into the reasons why the use of puppets is so effective.     

Re‐presenting women and leadership: a methodological journey

Research on women's leadership has tended to focus upon detailed micro studies of individual women's identity formation or, alternatively, to conduct macro studies of its broader discursive constructions within society. Both approaches, although providing helpful understandings of the issues surrounding constructions of women's leadership, are inadequate. They fail to deal with the ongoing dilemma raised in both Cultural Studies and studies of discourse and identity, in relation to the negotiation of subjectivity and representation, that is, how broader societal discourses and media representations of women's leadership both inform, and are informed by, the lived experiences of individual women. In this article, a range of methodological approaches are outlined that were drawn upon in a study of a small group of senior women academics from ethnically and socioeconomically diverse origins. The authors examine how the women negotiated the frequent mismatch that arose between, on the one hand, societal discourses and media representations which often reproduced narrow and highly stereotypical accounts of women's leadership, and on the other hand, the individual women's subjective experiences of leadership which challenged such representations. It is contended that it is necessary to draw on a number of methodological perspectives in ways which trouble and unsettle homogenized versions of women's leadership in order to fully explicate more nuanced and complex ways of understanding how women's leadership identity is formed.     

The unreliable narrator,or the difference between writing prose in literature and in social science: A commentary on Tierney's article

Qualitative research methodologies comprise distinct traditions, each of which is based on its own assumptions and discrete methods for collecting, analyzing and reporting data. This paper examines a distinctive approach to qualitative research that was employed in a recent study to open a gateway to understanding the impact of the shootings at Columbine High School. Using the Columbine study as a model, it analyzes and delineates a process for collecting data through modified oral history practices, displaying data through stories using a specialized form of poetic representation, and disclosing results through strategies adapted from educational criticism and connoisseurship.     

Audiences and metaphors of globalization in the daimlerchryslerag merger

This paper examines the metaphors and discourse used to strategically explain and justify the 1999 global merger of the Chrysler Corporation and Daimler Benz‐ The metaphors “a single global entity,”; “a good fit,”; and “a marriage of equals”; were used by management to help construct a favorable meaning for the merger, and enhance the probability of success. These metaphors were used in messages directed toward a variety of internal and external stakeholders. The metaphors appear to have failed due to their increasing internal inconsistency and contrast with the reality of the merger.     

The Literate “Illiterates” of the Northern Cape Province of South Africa—an Empirical Account

This paper discusses the concept “literacy” from an African perspective, with particular reference to the Xhosa culture. The community of Nonzwakazi Township of De Aar in the Northern Cape Province of South Africa is taken as a case study. Thc conventional Western definitions of literacy are debated within the African constructs. Three themes are explored in the paper, namely: (i) The impact of past Apartheid laws on literacy levels in the area, with special reference to the Bantu Education Act of 1953, (ii) The definition of the concept of African traditional literacy, compared to the Western definitions and (iii) An inter-disciplinary definition of literacy using Strauss' 15 Aspects of Life as a guideline.     

Physiological characteristics of successful mountain bikers and professional road cyclists

The aims of this study were to compare the physiological and anthropometric characteristics of successful mountain bikers and professional road cyclists and to re-examine the power-to-weight characteristics of internationally competitive mountain bikers. Internationally competitive cyclists (seven mountain bikers and seven road cyclists) completed the following tests: anthropometric measurements, an incremental cycle ergometer test and a 30 min laboratory time-trial. The mountain bikers were lighter (65.3 - 6.5 vs 74.7 - 3.8 kg, P = 0.01; mean - s ) and leaner than the road cyclists (sum of seven skinfolds: 33.9 - 5.7 vs 44.5 - 10.8 mm, P = 0.04). The mountain bikers produced higher power outputs relative to body mass at maximal exercise (6.3 - 0.5 vs 5.8 - 0.3 W·kg -1 , P = 0.03), at the lactate threshold (5.2 - 0.6 vs 4.7 - 0.3 W·kg -1 , P = 0.048) and during the 30 min time-trial (5.5 - 0.5 vs 4.9 - 0.3 W·kg -1 , P = 0.02). Similarly, peak oxygen uptake relative to body mass was higher in the mountain bikers (78.3 - 4.4 vs 73.0 - 3.4 ml·kg -1 ·min -1 , P = 0.03). The results indicate that high power-to-weight characteristics are important for success in mountain biking. The mountain bikers possessed similar anthropometric and physiological characteristics to previously studied road cycling uphill specialists.