Apples to oranges?: comparing across studies of open collaboration/peer production

Judd Antin, Ed H. Chi, James Howison, Sharoda A. Paul, Aaron D. Shaw, Jude Yew. Apples to oranges?: comparing across studies of open collaboration/peer production. In Felipe Ortega, Andrea Forte, editors, Proceedings of the 7th International Symposium on Wikis and Open Collaboration, 2011, Mountain View, CA, USA, October 3-5, 2011. pages 227-228, ACM, 2011. [doi]