Some teachers have found, however, that learners prefer to add their own content rather than rewrite others' work, perhaps because of an institutionally cultivated norm of individual ownership.
[4] There is capability, with wiki software such as MediaWiki, to review all the edits made by any particular user.
This feature is useful for teachers of classes in which grades for group projects are determined by the contributions of individual students to a wiki.
"[5] Another educator who had students use MediaWiki writes:[6] One thing they didn’t have to worry about—and herein lies, to my mind, one of the greatest virtues of the wiki as a tool for collaborative work—was that some contributors might walk away with a high grade in exchange for little effort, freeloading off the commitment of others.
I showed them how the wiki enabled me—and them—to track each user’s participation in the project.