Web-based writing tools, which allow multiple writers to share and edit the same document, have attracted significant attention as computer-assisted language learning tools in the past decade. However, how L2 writers contribute to the shared document as a social action for interacting with other cowriters remains underexplored in L2 research.…

This paper reports on an empirical research on the Interaction Equivalency Theorem posited by Anderson (2003a), consisting of the three elements of teacher-student-content interaction. Using an author-developed survey, the paper reports the priority order of interaction elements to assure learning quality with two parameters of learning modes and…