From PowerPoint presentations to web-based quizzes to entire classes taught online, technological changes have had a strong influence on pedagogical practices. The initial research into the pedagogical effectiveness of these emerging technologies suggests there are many ways in which they might be useful (Boschmann 1995; Hiltz 1994; Palloff and Pratt 2001). In this paper, we examine student participation on a structured online discussion group that spanned three universities and address two research questions: what explains student participation in online discussion groups and how effective are these groups as pedagogical tools? To address these topics, we draw upon our use of online discussions as a class assignment during the fall semester of 2000. First, we examine previous research and generate several expectations about student behavior and attitudes.
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Clawson et al. (2002) studied this question.
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