designing a role structure to engage students in computer-supported collaborative learning

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  • Internet and Higher Education 24 (2015) 1320

    Contents lists available at ScienceDirect

    Internet and Higher EducationDesigning a role structure to engage students in computer-supportedcollaborative learningXiaoqing Gu a,, Yinjuan Shao a, Xiaofeng Guo a, Cher Ping Lim b

    a East China Normal University, Shanghai, Chinab The Hong Kong Institute of Education, Hong Kong, China Corresponding author at: Department of EducatioEast China Normal University, 3663 Zhangshan RoChina. Fax: +86 21 62232838.

    E-mail addresses: xqgu@ses.ecnu.edu.cn, guxqecnu@g

    http://dx.doi.org/10.1016/j.iheduc.2014.09.0021096-7516/ 2014 Elsevier Inc. All rights reserved.a b s t r a c ta r t i c l e i n f oArticle history:Accepted 8 September 2014Available online 16 September 2014

    Keywords:CSCLContent analysisRole assignmentSocial knowledge constructionThis study investigates the design of a role structure to engage undergraduate students in collaborative knowl-edge construction. A total of 72 students of an Instructional Design course were divided into 12 small groups,amongwhich six roles of Starter, Supporter, Arguer, Questioner, Challenger, and Timerwere assigned respective-ly. Group discussions of eight learning themes were recorded, which included approximately 1500 lines of mes-sages. Taking group discussion as the unit of analysis, a two-dimensional coding scheme was developed todiscover the extent towhich thedesigned role structure facilitated themodeling of the group cognitive processes.The findings suggest that the role structure design supports the students in collaborative problem solving bymodeling the joint collaborative activities and group cognitive processes. Therefore, mapping the designedroles of related cognitive components in a group discussion may develop group cognition in a collectiveproblem-solving process.

    2014 Elsevier Inc. All rights reserved.1. Introduction

    Many learning science researchers have taken an interest in collabo-rative learning over the last two decades, guided by the belief that stu-dents must develop the ability to establish mutual understanding andgain new knowledge through the process of problem-solving in collab-oration with their peers (Hogan, 1999; Scardamalia, Bereiter, & Lamon,1994; Yu, 2004). Effective collaboration requires positive interdepen-dence and individual accountability of each group member (Johnson &Johnson, 1989). However, placing students in groups does not necessar-ily lead to improved understanding and performance within a collabo-rative knowledge construction context (Karakostas & Demetriadis,2011;Weinberger, Reiserer, Ertl, Fischer, &Mandl, 2005). This phenom-enonmay be due to the lack of a diffusion of engagement in groups andresponsibility for the joint tasks (Morris et al., 2010). Effective collabora-tion requires an environment that promotes positive interdependenceand individual accountability, thereby ensuring that all memberscontribute to the meaning-making process.

    In facilitating collaborative learning, computer-supported collabora-tive learning (CSCL) systems may serve as tools to support the buildingof shared knowledge and negotiation of such knowledge (Stahl, 2003).To address the issue of interdependence and individual accountability incollaborative learning, role-assigningmethods are frequently suggestednal Information Technology,ad North, Shanghai 200062,

    mail.com (X. Gu).as a means of structuring CSCL design (DeWever, Van Keer, Schellens &Valcke, 2009; DeWever, Keer, Schellens, & Valcke, 2010; Schellens, VanKeer, De Wever, & Valcke, 2007; Strijbos & Weinberger, 2010). The un-derlying assumption is that interdependencies and individual account-ability can be promoted and enhanced through the proper division oflabor. Therefore, structure design has become a research focus in thefield of CSCL (Kapur & Kinzer, 2008), within which the role-structuring process is typically realized by assigning a student with astated responsibility. Such responsibility consists of multiple activities,thus forming a pattern of acts normally performed by a specific groupmember (Spada, 2010; Strijbos & De Laat, 2010).

    Based on an undergraduate Instructional Design course offered in aChinese university, the current paper examines how a role structuredesign models the group cognitive processes of collaborative learningto engage students in this learning process. This course consists of aseries of CSCL units and weekly face-to-face classroom sessions. Themajor challenge faced by tutors in this course is student engagement:not all students are fully engaged in the course activities, especiallywhen the course is delivered using CSCL. Here, roles are assigned tothe students to better engage them in group interactions and helpthem achieve high-quality collaboration. Therefore, the main researchquestion of the current study is as follows: How and to what extentcan the designed role structure model the joint cognitive process forthe students to engage in CSCL? The sub-research questions are givenbelow.

    How and to what extent do students enact the assigned roles? How and to what degree do the designed roles support students in

    http://crossmark.crossref.org/dialog/?doi=10.1016/j.iheduc.2014.09.002&domain=pdfhttp://dx.doi.org/10.1016/j.iheduc.2014.09.002mailto:xqgu@ses.ecnu.edu.cnmailto:guxqecnu@gmail.comUnlabelled imagehttp://dx.doi.org/10.1016/j.iheduc.2014.09.002Unlabelled imagehttp://www.sciencedirect.com/science/journal/10967516

  • 14 X. Gu et al. / Internet and Higher Education 24 (2015) 1320group cognitive processes? How and to what degree do the designed roles model the groupcognitive process to engage students in collaborative problemsolving?

    Although there are a number of studies on role assignment in theCSCL context, most of these are focused on the effects of roles on partic-ipation rates (Seo, 2007), interaction patterns (Morris et al., 2010;Strijbos et al., 2004), and knowledge construction levels (Schellenset al., 2007). The current study intends to engage students in a collabo-rative learning process by designing roles to model the joint cognitiveprocess. This problem has remained a challenge for students when thecognitive process takes place at the group level (Stahl, 2006). Rolesare structured and assigned with the specific aim of modeling thegroup cognitive process so as to condition students to actively partici-pate in the meaning-making process.

    2. Literature review

    As an emerging topic in CSCL research, the use of roles (i.e., statedfunctions and responsibilities that guide individual behavior and regu-late group interaction) aims to facilitate group learning (Strijbos & DeLaat, 2010) bypromoting individual accountability and positive interde-pendence. These objectives constitute the core of collaborative learning.Furthermore, scholars have developed the emerging view of consider-ing groups as information processors in the development of groupcognition (Hinsz, Tindale, & Vollrath, 1997; Stahl, 2006). In thisapproach, interaction among members is the key mediator facilitatingthe co-construction of shared understanding and the creation of newknowledge as a group. Through this discourse, knowledge or ideas areconstructed, negotiated, and created (Lamon, Reeve, & Scaredamalia,2001). To shift the focus of discourse toward knowledge creation andco-construction, rather than knowledge sharing in a group activity,learners are usually encouraged to produce cognitive artifacts, such asinterpreting or reasoning their ideas. This process involves criticallyreflecting upon the contributions of other group members and buildingon one another's ideas. However, a new learning approach and highcognitive engagement lead to complexity, whichmay hinder the devel-opment of group cognition. In response, role assignment may reducesuch complexity and facilitate group cognition development because,using this approach, learners can maximize their participation basedon their assigned roles.

    2.1. Roles in participative stance

    Studies on group dynamics reveal that individual accountabilityand positive interdependence are important factors that ensure thesmooth functioning of any group, and therefore, to the principles ofthe CSCL approach (Forsyth, 1999; Strijbos, Martens, Jochems, &Broers, 2007). Individual accountability refers to the extent to whichstudents are individually accountable for joint tasks or duties, whereaspositive interdependence is the degree to which the performance of asingle group member depends on the performance of other members.Assigning roles for different group members can improve coordinationand promote group cohesion and interdependence (Brush, 1998; DeWever, Schellens, Van Keer, & Valcke, 2008). Research in this areareveals that the positive effects of role assignment foster positive inter-dependence and individual accountability. These effects include helpingstudents focus on their responsibilities in the group and on the qualityof their contributions, thus raising group performance awarenessamong group members; stimulating individual contributions (Strijboset al., 2004, 2007); ensuring organized division of tasks, coordinationand integration; and alleviating problems related to non-participationor domination of interaction by one group member (Cohen, 1994;Strijbos & De Laat, 2010).Roles can be classified based on different perspectives, such as func-tional versus cognitive roles (Palincsar & Herrenkohl, 2002; Strijboset al., 2007), product versus process roles (Strijbos & De Laat, 2010),and other dimensions, such as group size and efforts invested by thedifferent roles (Pfister & Oehl 2009, Strijbos & Weinberger, 2010).

    Functional roles focus on supporting the doing of a task by classify-ing and assigning particular functions, whereas cognitive roles supportthe

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