It is about timing: Network prestige in asynchronous online discussions

Asynchronous online discussions are broadly used to support social learning. This paper reports on an undergraduate class's online discussion activities over one semester. Applying social network analysis, this study revealed a participation gap among students reflected by their varied levels of network prestige. The low‐prestige group initiated equivalent volumes of interactions but were less reciprocated. In‐depth analysis found the high‐prestige group also advantageous in other network measures such as closeness centrality and eigenvector centrality, as well as the strength, persistence, and reciprocity of their ties. To probe potential explanations of the revealed gap, we further contrasted post content and posting behaviours between two groups. Results did not identify any significant differences in post content but found low‐prestige students' participation less timely and more temporally compressed. This paper calls for attention to the participation gap in online discussions, microlevel temporal patterns of student activities, and practical means to scaffold student participation in asynchronous online discussions.     

Effects of community of inquiry,learning presence and mentor presence on K-12 online learning outcomes

This study extends the community of inquiry (CoI) framework and self-regulated learning (SRL) theory through an exploration of the structural relationships among existing CoI variables, learning presence (i.e., self-efficacy and online SRL strategy) and learning outcomes in the context of K-12 online learning. To help understand the influence of K-12 mentoring – which is unique to online learning in the U.S. – mentor presence is also included. Structural equation modelling of 696 online 8th through 12th graders' survey responses and final grades showed that adding learning presence to the CoI framework helped to explain how these learners translated their online-learning perceptions into cognitive and affective learning outcomes. We also found that mentor presence significantly and positively predicted online SRL strategy, one of the two components of learning presence. Lastly, we established a connection between the CoI model and various types of learning outcomes that are indicators of K-12 online learning success – though it should be noted that important differences existed between a model based on final grades and two other outcome models. It is hoped that the processes identified in this study will be useful and relevant to K-12 online-learning institutions and educators seeking to improve their offering via a wide range of approaches.     

How and what university students learn through online and face-to-face discussion: conceptions, intentions and approaches

Abstract This paper reports a phenomenographic investigation into students' experiences of learning through discussion – both online and face to face (F2F). The study context was a second-year undergraduate course in psychology for social work in which the teacher had designed discussion tasks to begin in F2F mode and to continue online. A combination of open-ended questionnaires and semi-structured interviews was used to investigate students' conceptions of what they were learning, their intentions and their approaches to learning through discussion. Analysis of the interview and open-ended questionnaire data identified a number of qualitatively different conceptions, intentions and approaches to learning through discussion. Associations were found between what students thought they were learning through discussions, their approaches to learning through discussion and their course grade. Students with a cohesive conception and students adopting a deep approach (to learning through online discussion) got better course grades. There was no significant difference between deep and surface approaches to F2F discussion and course grade. The outcomes of this study have implications for the design of online and F2F discussion tasks and in particular for helping students adopt richer conceptions of what they stand to gain through discussion.     

Guidelines for facilitating the development of learning communities in online courses

Online learning has grown exponentially in recent years; however, dropout problem remains challenging for some online programmes. The dropout problem can be attributed to a number of reasons, with a lack of interaction between learners and the instructor constituting one of the main reasons. The lack of interaction also leads to learners' feeling of isolation. Learning communities can provide learners with an environment conducive to increased interactions and alleviate their feeling of isolation. Unfortunately, there are no clear rules that instructors can follow to help learners create learning communities. In this paper, we propose guidelines for online instructors to facilitate the development of learning communities in online courses. We first review the definition of a learning community, importance of a learning community and factors affecting the development of a learning community. Afterwards, based on a review of the existing guidelines and other relevant literature, we propose guidelines for facilitating the development of learning communities in online courses.     

How students emerge as learning leaders in small group online discussions

In this study, we examined the role of leadership styles and multi-dimensional learner engagement in how students emerge as learning leaders in asynchronous online discussions. Grounded in the conceptual framework of two dominant leadership styles of transformational and transactional leadership, this study applies the two leadership styles—transformational leadership and transactional leadership—to the Leader Identification Method (LIM) which defines three types of leader roles (i.e., full, transactional and attractive facilitator) in online learning. We collected data from 20 students enrolled in a graduate-level online course that required participation in 12-week discussion activities. Results of the longitudinal data analyses show that person-focused, transformational leadership and active participation in online discussions were significant factors that enabled students to emerge as learning leaders. Students are more likely to become leaders by exhibiting transformational leadership behaviour and productively interacting with one another in an online discussion community.     

When groups decide to use asynchronous online discussions: collaborative learning and social presence under a voluntary participation structure

The purpose of this study is to explore how groups decide to use asynchronous online discussion forums in a non-mandatory setting, and, after the group decision is made, how group members use online discussion forums to complete a collaborative learning project requiring complex data gathering and research processes. While a large body of research on computer-mediated communication (CMC) has documented successful intervention strategies to promote and sustain online discussion forums, little of the research has examined the use of online discussion forums in voluntarily contexts, wherein the decision to use online discussion forums is a personal decision and participation is not a graded component. This study approaches the research questions using a naturalistic case study of one graduate-level blended learning course with 55 students. Employing both student interviews and content analysis methods, this study revealed that the factors affecting the group decision to use online discussion forums are (1) successful or unsuccessful experiences during the first trial, (2) perceived affordances of CMC tools, and (3) the interplay between the nature of collaborative tasks and perceived efficiency. The content analysis of online postings in two voluntary groups revealed that when groups decided to use online discussion forums, participation levels were almost equal among individual group members, and discussion threads were sustained until the final completion of the collaborative project.     

It's not so easy: researching the complexity of emergent participant roles and awareness in asynchronous networked learning discussions

Abstract In this paper, we explore some of the complexities of emergent role development and group awareness among participants in an asynchronous Networked Learning discussion in a higher education context. We used content analysis to provide participant profiles for learning and tutoring processes within a group of collaborating professionals. Using these we selected three distinct student participants with whom we then conducted critical event recall. Our findings suggest how distinct roles emerge, and how they effect the group dynamics. They show the importance of group process awareness, and how this may be used and developed by participants. Some implications for pedagogical and software design are discussed.     

Social presence in online discussions as a process predictor of academic performance

With the steady development of online education and online learning environments, possibilities to support social interactions between students have advanced significantly. This study examined the relationship between indicators of social presence and academic performance. Social presence is defined as students' ability to engage socially with an online learning community. The results of a multiple regression analysis showed that certain indicators of social presence were significant predictors of final grades in a master's level computer science online course. Moreover, the study also revealed that teaching presence moderated the association between social presence and academic performance, indicating that a course design that increased the level of meaningful interactions between students had a significant impact on the development of social presence, and thus could positively affect students' academic performance. This is especially important in situations when discussions are introduced to promote the development of learning outcomes assessed in courses. Another implication of our results is that indicators of social presence can be used for early detection of students at risk of failing a course. Findings inform research and practice in the emerging field of learning analytics by prompting the opportunities to offer actionable insights into the reasons why certain students are lagging behind.     

Temporal transitions in participation flow in an asynchronous discussion forum

This study examined the overarching issue of how temporal transitions, specifically duration of message flow, affects momentum or wellness of discussion in an asynchronous forum. Quantitative data representing time indicators in discussion activity included posting patterns related to duration (density, intensity, latency, and response count), Day-In topic, day of week, and time of day. Qualitative analysis identified notable spikes or irregularities (i.e., peaks and valleys) in the content level of postings. Results revealed that for open-ended topics (i.e., no specific end date imposed by the instructor), the momentum of forum discussion may be short-term, between 21 and 28 days into the topic. Peaks and valleys subsequent to 31 days were not significant to discussion vitality. Students posted mainly early to mid-week. Time of day had no direct influence on the vitality of the discussion. Strategies for applying temporal transitions in an online forum to motivate and sustain student participation are discussed.     

Pairing practice and feedback with animations optimizes student learning in online module

In this study, we investigated the optimal placement of animations and practice and feedback exercises with respect to each other and to static text and graphics in an online DNA replication module. We randomly assigned students in a first‐semester introductory biology course for freshmen biology majors and nonmajors to one of four online modules with animations and practice exercises (assets) either embedded with the text and images or saved until the end after all the text and images. Although we expected to find that embedding assets with text and images would improve learning outcomes, we were surprised to find that outcomes did not change with the location of these assets with respect to the text and static images. Instead, we found that colocation of exercises with animations was correlated with the biggest student learning gains, independent of where these assets appeared relative to the static text and static images. This held true both for immediate posttest scores and delayed application questions on a midterm exam. Our findings could have potential implications for how to best design online learning modules that feature multiple assets.     

The final year project supervision in online distance learning: assessing students and faculty perceptions about communication tools

Communication in Online Distance Learning courses revolves around two distinct forms: synchronous and asynchronous. A lot of work has been already developed focused on better understanding the roles that each of these forms of communication plays in Distance Learning and to which extent they are sufficient to provide rich and in-depth interaction experience for students and professors. The present paper focuses on better understanding the perceptions of Online Distance Learning students and supervisors about communication tools available for them during the Final Year Project supervision (FYP). A total of 262 students and 62 professors were surveyed about their impressions related to three different aspects of communication during FYP distance supervision: preferences for one form of communication over the other (synchronous versus asynchronous), appropriateness of both forms of communication to different types of discussions, and the sufficiency of these forms of communication as the sole forms of communication in the FYP discipline. Among other things, results point out an explicit preference from students and supervisors for using the asynchronous form throughout the discipline (even though the synchronous form also received good ratings). Moreover, both forms of communication were more used by students and supervisors for the discussion of academic and important topics. At last, both students and supervisors consider distance supervision as efficient as face-to-face supervision, and less experienced students consider more important to have face-to-face meetings with their supervisors than more experienced students.     

A blended learning Approach to teaching foreign policy: Student experiences of learning through face-to-face and online discussion and their relationship to academic performance

This article presents research on students’ experiences of learning through a blend of face-to-face and online discussion. The participants in our study were students enrolled in a foreign policy course at a major Australian university. Students’ conceptions of learning through discussion, and their approaches to both face-to-face and online discussion, were elicited through open-ended questionnaires and semi-structured interviews. Students’ responses to both open-ended questionnaires and interviews were analysed using a phenomenographic framework. Qualitative variations in students’ conceptions and approaches were categorised and were found to form a hierarchy. Subsequent quantitative analysis found associations between students’ conceptions of learning through discussion, their approaches to both face-to-face and online discussion and their academic performance (as indicated by the final mark for the course). Implications for teaching and further research are discussed.     

Social presence in relation to students' satisfaction and learning in the online environment: A meta-analysis

Social presence, the ability to perceive others in an online environment, has been shown to impact student motivation and participation, actual and perceived learning, course and instructor satisfaction, and retention in online courses; yet very few researchers have attempted to look across contexts, disciplinary areas, or measures of social presence. This meta-analysis allowed us to look across these variables of the primary studies and identify the pattern of student outcomes (e.g., perceived learning and satisfaction) in relation to social presence through scrutiny of differences between the studies. The results showed a moderately large positive average correlation between social presence and satisfaction (r = 0.56, k = 26) and social presence and perceived learning (r = 0.51, k = 26). Large variation among correlations (86.7% for satisfaction and 92.8% for perceived learning, respectively) also indicated systematic differences among these correlations due to online course settings. We found that (a) the strength of the relationship between social presence and satisfaction was moderated by the course length, discipline area, and scale used to measure social presence; and (b) the relationship between social presence and perceived learning was moderated by the course length, discipline area, and target audience of the course. Implications and future research are discussed.     

在线异步联邦学习的客户优化选择与激励

联邦学习能够在保护用户隐私的前提下,使不同的客户端合作共同训练同一模型,如何激励高质量的客户端参与联邦学习是关键。在线联邦学习环境中,由于参与训练的客户端随机到达和离开,每轮参与报价的客户端动态变化,对客户端的在线质量评估与选择是一个难题。针对这一挑战提出了在线联邦学习激励算法,以优化在线客户端的选择和预算分配,提高预算约束下在线环境联邦学习的性能。该算法将预算按阶段划分并根据历史样本信息计算最优的质量密度阈值,其主要思想是对客户端模型质量进行动态评估,在此基础上采用质量阈值准入机制,同时对参与训练的客户端数量进行限制。从理论上证明了激励算法满足激励相容性、预算可行性和个体理性。实验结果表明,提出的在线激励算法在不同比例搭便车客户端的情况下都能有良好的性能,在预算充足且有搭便车和有误标标签的客户端情况下比已有方法在EMNIST-B和CIFAR-10两个数据集上分别提高约4%和10%。     

Analytics of learning tactics and strategies in an online learnersourcing environment

Background

The use of crowdsourcing in a pedagogically supported form to partner with learners in developing novel content is emerging as a viable approach for engaging students in higher-order learning at scale. However, how students behave in this form of crowdsourcing, referred to as learnersourcing, is still insufficiently explored.

Objectives

To contribute to filling this gap, this study explores how students engage with learnersourcing tasks across a range of course and assessment designs.

Methods

We conducted an exploratory study on trace data of 1279 students across three courses, originating from the use of a learnersourcing environment under different assessment designs. We employed a new methodology from the learning analytics (LA) field that aims to represent students' behaviour through two theoretically-derived latent constructs: learning tactics and the learning strategies built upon them.

Results

The study's results demonstrate students use different tactics and strategies, highlight the association of learnersourcing contexts with the identified learning tactics and strategies, indicate a significant association between the strategies and performance and contribute to the employed method's generalisability by applying it to a new context.

Implications

This study provides an example of how learning analytics methods can be employed towards the development of effective learnersourcing systems and, more broadly, technological educational solutions that support learner-centred and data-driven learning at scale. Findings should inform best practices for integrating learnersourcing activities into course design and shed light on the relevance of tactics and strategies to support teachers in making informed pedagogical decisions.