This paper presents a tool developed for the purpose of assessing teaching presence in online courses that make use of computer conferencing, and preliminary results from the use of this tool. The method of analysis is based on Garrison, Anderson, and Archer’s [1] model of critical thinking and practical inquiry in a computer conferencing context. The concept of teaching presence is constitutively defined as having three categories – design and organization, facilitating discourse, and direct instruction. Indicators that we search for in the computer conference transcripts identify each category. Pilot testing of the instrument reveals interesting differences in the extent and type of teaching presence found in different graduate level online courses.

Asynchronous Learning Networks (ALNs) make the process of collaboration more transparent, because a transcript of conference messages can be used to assess individual roles and contributions and the collaborative process itself. This study considers three aspects of ALNs: the design; the quality of the resulting knowledge construction process; and cohesion, role and power network structures. The design is evaluated according to the Social Interdependence Theory of Cooperative Learning. The quality of the knowledge construction process is evaluated through Content Analysis; and the network structures are analyzed using Social Network Analysis of the response relations among participants during online discussions. In this research we analyze data from two three-monthlong ALN academic university courses: a formal, structured, closed forum and an informal, nonstructured, open forum. We found that in the structured ALN, the knowledge construction process reached a very high phase of critical thinking and developed cohesive cliques. The students took on bridging and triggering roles, while the tutor had relatively little power. In the non-structured ALN, the knowledge construction process reached a low phase of cognitive activity; few cliques were constructed; most of the students took on the passive role of teacher-followers; and the tutor was at the center of activity. These differences are statistically significant. We conclude that a well-designed ALN develops significant, distinct cohesion, and role and power structures lead the knowledge construction process to high phases of critical thinking.

A meta-analysis of the comparative distance education (DE) literature between 1985 and 2002 was conducted. In total, 232 studies containing 688 independent achievement, attitude, and retention outcomes were analyzed. Overall results indicated effect sizes of essentially zero on all three measures and wide variability. This suggests that many applications of DE outperform their classroom counterparts and that many perform more poorly. Dividing achievement outcomes into synchronous and asynchronous forms of DE produced a somewhat different impression. In general, mean achievement effect sizes for synchronous applications favored classroom instruction, while effect sizes for asynchronous applications favored DE. However, significant heterogeneity remained in each subset.

Over the past 15 years, educational technologists have been dabbling with a research technique known as quantitative content analysis (QCA). Although it is characterized as a systematic and objective procedure for describing communication, readers find insufficient evidence of either quality in published reports. In this paper, it is argued that QCA should be conceived of as a form of testing and measurement. If this argument is successful, it becomes possible to frame many of the problems associated with QCA studies under the well-articulated rubric of test validity. Two sets of procedures for developing the validity of a QCA coding protocol are provided, (a) one for developing a protocol that is theoretically valid and (b) one for establishing its validity empirically. The paper is concerned specifically with the use of QCA to study educational applications of computer-mediated communication. The primary role of networked computers in higher education has shifted from presenting structured, preprogrammed learning materials to facilitating communication. In turn, the role of educational technology researchers has expanded to include the role of communication researcher. In the late 1980s, studies began to appear that incorporated new perspectives, new methods, and new techniques. One of the most promising was quantitative content analysis (QCA). Berelson (1952) defined QCA as “a research technique for the systematic, objective, and quantitative description of the manifest content of communication ” (p. 18). In this context, description is a process that includes segmenting communication content into units, assigning each unit to a category, and providing tallies for

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This paper reviews the literature on the learning effectiveness of asynchronous online environments. It looks beyond the commonly accepted findings of no significant differences in learning outcomes between online and traditional courses to examine that literature in terms of forms of interactivity, a feature of online environments that might matter or be made to matter in learning. It thus explores and is organized according to learner interactions with course content, student interactions with instructors, and interactions among classmates in online course environments. More recent notions of interactions with computer and course interfaces and virtual interaction are also briefly examined. The chapter concludes with a summary of what the research tells us and its for implications online learning.

Given the current diversity of communication tools at an educator's disposal, what role (if any) does the discussion forum play in the development of a strong sense of community among students? This study sought to investigate the relationship between discussion forum interaction and perceived student sense of community. The results of the study demonstrate that while mere quantity of discussion forum postings is not an indicator of community development, a significant relationship is observed when contributions are codified into the various discussion interaction types (learner- learner; learner- content; system). An implication emerging from these findings is the ability for the institution to implement evaluative measures to gauge levels of student sense of community in a just in time environment. As discussion interactions are automatically captured and reported, the data provides an indication of the degree of community developing among the student population at a specific snapshot in time. As multiple snapshots provide an ongoing indicator of community development, practitioners have the capacity to develop intervention activities designed to promote further peer to peer discussion and therefore, facilitate the development of a strong sense of community.

The Community of Inquiry (COI) theoretical framework suggests that successful higher education experiences are supported by the presence and interaction of cognitive, social and teaching elements. Since the COI model has been widely used for examining quality of asynchronous computer-mediated communication (CMC) educational interactions, its applicability to synchronous CMC interactions is relatively unknown. Moreover, as the model’s coding scheme was mainly designed for analyzing online asynchronous discussions, it is more sensitive to longer postings than the shorter and more discursive exchanges present in online synchronous (chat) discourse. This paper presents a case study on the instructional application of online synchronous interaction in a distance IT undergraduate course from a sociocultural constructivist perspective. The case involved two tutorial groups engaged in collaborative learning situated in WebCT chat rooms. The study focuses on identifying cognitive, social and teaching presences from the analyses of student experiences and chat exchanges during moderated virtual tutorial discussions. A web survey was administered to student respondents on the extent of peer/tutor learning support perceived to be available. Also, chat transcripts, reflecting dialogic participation in tutorial discussions, were analyzed using a refined Exchange Structure Analysis scheme.

Critical thinking is a highly desirable goal of online higher education courses. This article presents qualitative data from a mixed-method study that explores how asynchronous discussions within online courses influence critical thinking among students. In this study, online discussions were related to higher levels of critical thinking, but qualitative data indicate that the way discussions are used and facilitated is vital for encouraging critical thinking. Online discussions typically have the purpose of creating a space and time for informal, open-ended thinking to occur. Critical thinking appears to be best encouraged among students when a more consistent emphasis is placed on the discussions, and when instructor facilitation is less frequent but more purposeful.

Abstract: This paper illustrates a five-year case study (from 2001 to 2005) regarding a course in educational technology that involved from 100 to 150 student teachers per year for a total of more than 500 trainees. Since the first version of the course, which was entirely based on a face-to-face approach, computer mediated collaborative learning techniques have gradually been introduced into the training program. The paper outlines the main problems faced in the various versions of the course, where different combinations were experimented with, and discusses the solutions adopted. The difficulties concern the demands of a large, diversified population and the methodological problems related to the non-neutrality of the introduction of online learning in the socio-cultural and organisational context of the study. The solutions include a highly flexible course design and a good balance and strict integration between traditional and online training techniques in the delivery of the course and in the assessment of trainees. Finally, we suggest possible directions for further research aimed at facilitating the infusion of online techniques in initial teacher training. Key-words: pre-service teacher training, teacher education, online learning, blended learning, case-study, educational technology