In University for me at least, a lot of those collaborative projects allowed the students to distribute their grade amongst participants.
In my experience at least the weaker contributors to the groups success, even those that just coasted, were still very honest when asked to assess their contribution and the contribution of others.
In my experience at least the weaker contributors to the groups success, even those that just coasted, were still very honest when asked to assess their contribution and the contribution of others.