6. Discussion
In summary, the findings based on the pre-post survey of epistemic views suggested that there was a significant positive relationship between students' engagement in online knowledge-building practice and the development of their more innovation-oriented, World-3 epistemic view. Specifically, it was found that: (1) students had a relatively less well-informed epistemic view at the beginning of the semester than at the end of the semester; (2) after engaging in collaborative knowledge-building activities for a semester, students' World 2 epistemic view remained similar; this implies that knowledge building did not reinforce the view that ideas and knowledge are possessed only within individual minds-as-a-container; (3) however, students' World 3 epistemic view became better informed, as they were more likely to treat ideas as real objects that can be tinkered with for improvement in order to advance group knowledge in a community. In addition, the findings based on an analysis of group performance showed that (4) groups with a better informed World 3 epistemic view tended to spend more time on online interaction and inquiry (in terms of inquiry days); and that (5) it was the quality of idea improvement, rather than the quantity of ideas, that played an essential role in influencing students’ World 3 epistemic views.