Figure 1: Version of Elluminate Live used in the context of the case study (Elluminate Live, 2001-2006)
| Australasian Journal of Educational Technology 2007, 23(1), 68-86. |
AJET 23 |
This paper reports on an exploratory case study designed to gain insight into instructors' experiences with web based synchronous communication using two way audio and direct messaging. We conducted semi-structured interviews with eight instructors who used Elluminate Live in their web based, asynchronous courses in Education, Nursing, and Social Work at a Canadian university during the Winter 2004-05. We grouped the findings into two categories. The first category relates to use of text based communication or direct messaging (DM). We subdivided this category as follows: trouble shooting versus teaching; and public versus private conversations. The second category relates to use of voice based communication or audio conferencing (two way audio) subdivided into four sub-categories as follows: talkers versus listeners; patience versus prompting; whole group versus breakout groups; and two way versus one way communication. Use of text based messaging and two way audio raised issues of the need to divide one's attention and to promote student-student interaction. Implications for research and practice are presented.
In terms of research on the use of synchronous communication tools, thus far, a number of studies have explored the use of text based chats (e.g. Dykes & Schwier, 2003; Lobel, Neubauer & Swedburg, 2005; Murphy & Collins, 1997; Slack et al., 2003; Schwier & Balbar, 2002). Some studies have explored audio conferencing (e.g. De Schutter, Fahrni & Rudolph, 2004; Levy & Kennedy, 2004; Nobes, 2003) and others, video conferencing (for reviews, see Anderson & Rourke, 2005; Knolle, 2002; MacLaughlin, Supernaw & Howard, 2004). This research has most often focused on investigations of a single mode of the technology such as chat, audio or video conferencing. For example, Nicholson (2002) and Hrastinski (2005) inquired into the use of synchronous communication tools in the context of asynchronous courses. Their focus was on text based synchronous tools only.
As a result of the growth of accessibility and affordability of equipment and bandwidth, web based synchronous communication is now becoming more common in distance education (Chou, 2002; Coghlan 2004; Knolle, 2002). New online synchronous communication environments such as Elluminate Live, HorizonLive, and Lyceum support multiple channels for communication and combine use of text based messaging in conjunction with other tools and features such as audio and/or video conferencing.
This recent growth highlights a need for a parallel interest in research on use of the technology in contexts of distance courses. The study reported on in this paper addresses this need through its focus on synchronous communication in distance courses at the university level. The purpose of the study was to gain insight into instructors' experiences with two way audio and text based direct messaging (DM). The exploratory study focused on the case of integration of a web based, synchronous communication environment called Elluminate Live into distance courses at a Canadian university.
Figure 1: Version of Elluminate Live used in the context of the case study (Elluminate Live, 2001-2006)
Unlike WebCT or the asynchronous portion of the course, ELive supported students' and instructors' synchronous communication using both text and voice exchanges. There was no visual or video based interaction. The version being used at the time supported half duplex, two way synchronous audio conferencing, which allows one person to speak at a time. ELive's Academic Version 7.0 allows communication between up to four individuals at one time. This version was not available at the institution when we conducted the case study. In addition to audio conferencing, students could engage in text based communication with the instructor or privately with one another through a direct messaging (DM) tool. Interaction could also take place in breakout rooms for work in smaller groups. Other tools available included a whiteboard, an application sharing tool, as well as a 'hand-raising' and polling feature (see http://www.elluminate.com/).
For our case study, we focused on eight of these ten instructors who responded to DELT's invitation to use ELive. The two instructors who did not serve as participants were the researcher and one instructor who left the University before the study was conducted. Six of the instructors were in Education, one was in Nursing and another in Social Work. With the exception of two of the eight courses, all were at the graduate (Master's) level. All eight instructors had prior experience teaching distance courses. Five of them had prior experience using teleconferencing for synchronous communication within distance courses. One individual had also used other forms of synchronous technology, such as two way television and one way video.
Technical training was conducted by DELT in two stages. The first stage involved individual meetings with an instructional design specialist during which instructors became familiar with the structure and use of the software. The second stage involved conducting a trial session. Some instructors also requested student training sessions at the beginning of the semester. Student sessions involved a demonstration of ELive features as well as equipment checks. Students were also provided with an opportunity to do mechanical checks half an hour prior to each session.
The advantage of using DM as a technical backup was overshadowed by the disadvantage of simultaneous use of the tool for technical and pedagogical purposes. As one individual explained, "that kind of troubleshooting at the same time as doing everything else ... was very challenging." In Emily's class, for example, some students had difficulties using the audio component and "kept sending ... text messages saying: I can't participate. I'm here, but I can't say anything." Emily expressed concerns and frustration with having to follow the written communication in DM and, at the same time, address students who were having problems while she was lecturing using the two way audio. She was disoriented by the need to juggle the pedagogical and the technical use of the tool. As she explained: "there were almost like two activities happening at the one time: one which was related to the technological problems and the other related to the course."
While Roger's and Adam's comments highlight some of the positive experiences instructors had with DM, others, like Emily, highlighted the distraction that resulted when students were "just kind of chatting back and forth in an informal way." She referred to students "talking about things in the course but things that they shouldn't necessarily be talking about while another person was speaking." David described how, in some instances, students would use DM for social, non-course related communication to talk to each other while the presentations were going on. Similarly, Roger recounted that "probably 20 percent of the time, [students] might have been sociable" and exchanged notes like 'Hi Bill... How is the course going?'" Neil commented that he "basically ignored" these exchanges, although he interjected on occasion to ask "Do you guys want to talk about Saturday night or do you want to talk about the class tonight?" Like Neil, David reported that he sometimes needed to focus students' attention away from the DM and "type in a message... to remind them - are they paying attention?"
Emily's reaction to the use of DM was similar to that of Neil and David. To describe her experience, she used the analogy of "having people in your class whispering to each other while the class is going on". She explained that "A lot of these people knew each other from previous courses" and wanted to have "little side conversations." Although she found it distracting, Emily did not stop private communication between students because she wanted to avoid making the use of the new technology "a very restrictive experience." In the future, however, she plans to introduce "some more rules around how to communicate... and set restrictions about text messaging" to avoid a similar experience.
Brian argued that this difference in participation levels was "pretty much the same as any other course in the classroom [where] some people ... are talking all the time to the exclusion of others." David attributed these differences in participation to personal differences among students noting that "there are talkers and there are listeners". He commented that these differences did not bother him because "the fact that they're not talking doesn't mean that they're not learning... and that's true whether it's a face to face class or an online class... In any situation, some people are going to talk more than others..." Like David, Adam was not concerned about the varied levels of participation. He argued that:
while they [students] are listening, they are engaged in their own ideas as well. They might not express them because they might not feel comfortable doing it but they still come back after the course is over and say: 'I learned a lot. I thought an awful lot about the things that were going on.'
In Emily's course, adopting the strategy of giving students some time to think about a response proved effective. After posing a question, she would "give it a minute or... a few seconds for people to think about it and usually their hands would go up." Audrey noted that this strategy may require some patience on the part of the instructor because "sometimes... you'd sit there for ages and no hands would come up." However, the strategy worked for her because she had "a great tolerance for silence."
In cases when students did not respond, some instructors encouraged participation by asking a question to the whole group of students such as "Does anybody want to add anything?" David explained that, after a period of silence, he might ask an individual student to contribute or ask students if "they [have] all gone to sleep or something." According to one instructor, this approach seemed to encourage some participation from students. In other instances, however, it did not promote any meaningful interaction. Roger observed that "sometimes... [students] were just asking the question out of pity for the instructor". Adam reported that, in his course, the amount of prompting decreased over time. He noted that, although he never prompted students a lot, "as time went on, it certainly got less."
Some instructors chose to prompt individual students. Neil, for example, would ask one student to elaborate on a problem mentioned in an email "because that might be an issue that the whole class is interested in". Adam's approach was to "wait a little while" and then to engage students who were ordinarily quiet. He would ask individual students questions such as "Bob, what do you think of this?" or "Do you agree with that, Sarah, or would you do something else?" A few weeks into the course, however, such prompting was no longer needed as students would answer independently. Like other instructors, Audrey resorted to addressing individual students. At the same time, she gave them the option of not responding. She explained that because the tutorials were voluntary, she could not require students to actively participate. For this reason, she told students: "if I come to you and you don't want to discuss something just say so."
Instead of addressing individual students, Emily preferred to prompt the group as a whole. On several occasions during her session, she asked the group if anyone else wanted to make a comment. She did not, however, "specifically go after" students who did not speak. Also, David preferred to prompt the entire group instead of individuals. Only occasionally did he ask somebody a question directly to get them involved, but he explained that he was "not big on that kind of intimidation". For Neil, participation in the discussions was the students' individual choice and therefore he "would let people make their own decision to speak".
Janice explained that, because she was "a pretty good talker," she tended to speak more than the students during the sessions. She noted that, because of this tendency, she may have "filled up the dead space" that might have occurred otherwise. She also explained that she may have "talked too much" because of the "tight agenda" driven by the amount of course content. Audrey reported that, in her case, the patterns of communication changed by the third session. In that session, "there was some... conversation student to student as opposed to student and me and then student and me and then another student and me." She attributed this change to the fact that it "takes a while for people to get used to that format and communicating that way." David explained that, in his case, he "tried to discipline" himself "not to dominate the talking." He wanted to avoid "one way communication", or "a one way presentation". He concluded that, if he were to hold teacher centred sessions, he "might as well just put [the] notes online" and that he was "not sure what the point of that would have been."
To promote participation with larger groups, David used the breakout rooms feature of ELive to allow students to have discussions in smaller groups. He found this feature to be an effective means of engaging students. David explained that he could visit each of those rooms when students were working in groups and he was "quite delighted to find... everybody taking part" in the discussion. Other instructors did not use the breakout rooms due to a lack of time and because the types of discussions lent themselves to the whole group listening.
In their investigation of synchronous audio communication in distance language courses, Hampel and Hauck (2004) refer to text messaging as a supplement to the audio input. Pullen (2004), who described use of synchronous communication in university courses, highlighted the value of text messaging when integrated with voice communication. He noted that DM provides an additional channel of communicating about course related as well as technical issues. In their study of synchronous chats in a university setting, Schwier and Balbar (2002) found that students were "passing notes" during the public discussion (p.31). The authors report that the majority of these side conversations were purely social. Although it was sometimes distracting, Schwier and Balbar plan to encourage side talk in the future since it also helped reduce the feeling of isolation among students. Instructors in Pullen's (2004) study encouraged the use of text messaging for content related purposes, by asking students to send them private messages during audio presentations and indicate whether further clarification was needed.
Kinzie, Whitaker and Hofer (2005), on the other hand, recommended against dividing the students' attention during academic instruction. Their study of use of instant text messaging during face to face lectures revealed that both students and instructors found the students' reliance on multiple sources of input distracting. This result confirmed findings in cognitive psychology (e.g. Hembrooke & Gay, 2003) which strongly suggest that performing two tasks simultaneously leads to a lower performance on either one or both of those tasks.
Instructors' experiences of using two way audio highlight issues of student centred versus teacher centred communication. Their descriptions of this experience frequently relied on arguments that paralleled face to face with online synchronous communication, as if the two contexts were no different. Other arguments or explanations which they provided for lack of student participation referred to individual differences between students, group size, the need for patience or prompting strategies, the need to cover course content, and the time needed for students to get used to the new technology.
When contrasting online asynchronous and face to face synchronous communication, Hardless (2000) refers to the active and passive modes of students' engagement as "participation versus presence" (p. 44). Ng and Detenber (2005) note that research suggests that lurkers, or students who merely listen, are likely to eventually become active participants in the discussions. However, in their own study of participation in both asynchronous and synchronous environments, they found that some students remained silent for the duration of the project.
Schwier and Balbar's (2002) investigation of text based synchronous chats highlighted the importance of careful planning and organisation in order to maintain lively discussion and avoid silence in synchronous communication sessions. In order to promote participation and interaction, the authors prepared students for the session by assigning readings and presenting a structure ahead of time. The authors found this strategy helpful in focusing the discussions and maintaining student engagement during the synchronous chats. Likewise, Kearsley (2000) asserts that such use of effective strategies to promote student participation and interaction in online classes is a pivotal task of the instructor and facilitator.
Since, in any classroom situation, some students will be more active than others, Schwier and Balbar (2002) suggest that instructors may want to "nudge some people to join the conversation or offer their thoughts" (p.30). De Schutter et al. (2004), however, assert that inviting individual students to speak should be done in a sensitive manner since students' comfort levels with regards to public speaking might vary. They encourage instructors to issue prior "warnings" that the strategy of prompting individual students will be used (p.8).
Anderson (2003) notes that instructors mainly use audio and video conferencing for lecture type delivery of content. He further argues, however, that, in order to increase the potential for learning, instructors need to promote various forms of interaction, including student-student, instructor-student, and student-content (Anderson, 2003; Dykes & Schwier, 2003). Dykes and Schwier (2003), in their study of online synchronous chats, accomplished this task by ensuring "that the strength of the instructor's voice didn't drown out other voices or dominate discussions" (p.25).
De Shutter et al. (2004) argued that the success of any online discussion is highly dependent on the number of participants. The authors added that, with a large group, information exchange is likely to be ineffective. They found that, to ensure a meaningful discussion in the context of audio synchronous communication, the number of students should be lower than 15. Macleod (2000) suggests even smaller numbers and claims that six to eight students would be ideal to maintain students' active engagement in a synchronous audio environment.
When conducting synchronous sessions with a small number of students at a time is not feasible, dividing students into smaller groups is an advisable strategy (De Shutter et al.; 2004, Lobel et al., 2004; Macleod, 2000). Dykes and Schwier (2003), in a context of synchronous, text based communication, found it necessary to divide their group of 16 students into two. Not only does dividing the group allow for more meaningful communication, it also contributes to student satisfaction. Students in Lobel et al.'s (2005) study of a university course involving a blended face to face and text based synchronous environment reported that small group discussions contributed to creating a milieu that was "open, accepting, supportive, and collaborative" (p.22).
The second category of voice based communication or audio conferencing included the sub-categories of talkers versus listeners; patience versus prompting; whole group versus breakout groups; and two way versus one way communication. These four sub-categories have in common that they relate to audio conferencing. Yet, they also have in common that they each raise issues of promoting student interaction in a context of web based, synchronous audio conferencing. The experiences suggest that it was the instructors themselves and not students who largely made use of the audio features. The exception to this was in the case of one instructor's use of breakout rooms. The study's design did not allow us to determine if the tendency towards instructors' predominant use of the audio tool was a result of a technical or pedagogical shortcoming. The version of ELive being used when the study was conducted supported only two way audio and allowed only one person to talk at a time. This setup and restriction may have favoured a one to many broadcast or teacher centred form of interaction. More recent versions of the software (e.g. ELive Academic Edition Version 7) do, however, support up to four simultaneous speakers. Given this new technical feature combined with pedagogical strategies that rely on use of breakout rooms, every student in a class could have access to their own microphone.
Our study relied on use of Version 6 of the software. In a case of a similar study in which students are grouped in breakout rooms with their own microphone and access to DM, the categories of findings would likely be very different. Likewise, we focused only on ELive as one type of synchronous communication environment. Other environments with different features or even different interfaces might result in behaviours and findings different from what was revealed in our study. We did not consider students' experiences in this environment nor did we conduct any observations of interaction and communication in the classes of the participating instructors. A focus on student perspectives and/or observations would have allowed for triangulation in order to validate the instructors' interview comments. These limitations combined with the findings of this study make evident the need for more investigations of learning and interaction in online synchronous communication environments combining both voice based and text based interactions.
In relation to the use of two way audio, instructors' reliance on comparisons of online synchronous communication with face to face communication reveals an assumption that students will behave similarly in each environment. This assumption supports the argument that online, just as in a face to face context, some students may lurk, be passive, and remain silent while others talk freely, are active and participate consistently. This assumption that compares the two contexts should not go unchallenged. Indeed, we may ask why some individuals do not participate actively in an online synchronous environment. Is their behaviour merely a mirror image of how they would react in a face to face environment or do they actually behave differently when online? If they do behave differently online, what conditions, contexts, or factors influence or drive that behaviour? For example, are they quiet because they are uncomfortable with the tools needed to communicate actively? Are they quiet because they are in fact taking advantage of the absence of the physical presence to engage in other activities while participating in class? In contexts of audio conferencing, what are the learners doing in the background when they are not actively talking or involved in the discussion?
The instructors may also have benefited from training in the use of DM. Those interested in the use of this tool in an environment which simultaneously supports audio conferencing need knowledge of strategies and techniques related to its effective use. The instructors' experiences suggest that management of DM requires pre-determined expectations about how the tool can be effectively used in an instructional context. Instructors will need to decide if and to what extent they want to encourage or allow use of DM for social interaction in the context of instructional use. They will need to develop multitasking strategies to manage simultaneous text based and voice based communication. Likewise, instructors may wish to explore strategies and techniques that rely on DM to support private text based communication with students in combination with whole group communication using audio conferencing.
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| Authors: Elizabeth Murphy is an Associate Professor of educational technology and second language learning in the Faculty of Education, Memorial University, Newfoundland, Canada. Her research focuses on secondary and post-secondary distance education, content analysis of online discussions and technology mediated language learning.
Justyna Ciszewska-Carr is a student at the Faculty of Education, and an instructor at the Department of English at Memorial University of Newfoundland. Her research interests include the use of technology in teaching and learning, as well as issues related to working with linguistically and culturally diverse students. Faculty of Education, Memorial University of Newfoundland St. John's, NL Canada A1B 3X8. Email: emurphy@mun.ca, justyna_ciszewska@yahoo.com Please cite as: Murphy, E. and Ciszewska-Carr, J. (2007). Instructors' experiences of web based synchronous communication using two way audio and direct messaging. Australasian Journal of Educational Technology, 23(1), 68-86. http://www.ascilite.org.au/ajet/ajet23/murphy.html |