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The visualization integrates more information in one view, and uses an improved user clustering approach for representing graphically their different levels of contribution. A case study of the new design with a group of 32 students taking a class on Ethics and Computer Science is presented. The results show that the visualization had a significant effect on participation with respect to two activities (logging into the community and rating resources). <\/jats:p>","DOI":"10.1142\/s0218843008001932","type":"journal-article","created":{"date-parts":[[2008,11,19]],"date-time":"2008-11-19T06:33:04Z","timestamp":1227076384000},"page":"443-466","source":"Crossref","is-referenced-by-count":16,"title":["EVOLVING A SOCIAL VISUALIZATION DESIGN AIMED AT INCREASING PARTICIPATION IN A CLASS-BASED ONLINE COMMUNITY"],"prefix":"10.1142","volume":"17","author":[{"given":"JULITA","family":"VASSILEVA","sequence":"first","affiliation":[{"name":"Computer Science Department, University of Saskatchewan, 110 Science Drive, Saskatoon, SK S7N 5C9, Canada"}]},{"given":"LINGLING","family":"SUN","sequence":"additional","affiliation":[{"name":"TELUS Business Transformation, Suite 1103, 10020-103 Ave. NW, Edmonton, A T5J 0G8, Canada"}]}],"member":"219","published-online":{"date-parts":[[2012,1,25]]},"reference":[{"key":"rf1","doi-asserted-by":"publisher","DOI":"10.1037\/h0054346"},{"key":"rf2","volume-title":"Existence, Relatedness and Growth","author":"Alderfer C.","year":"1972"},{"key":"rf3","volume-title":"Power: The Inner Experience","author":"McClelland D. 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