I'm really excited to be able to share the results from a research project Wiki Ed undertook this year to measure the student learning outcomes from Wikipedia assignments. There's an overview of the findings up now on the WMF blog: https://blog.wikimedia.org/2017/06/19/wikipedia-information-literacy-study/
Or if you want to jump straight to the report: https://commons.wikimedia.org/wiki/File:Student_Learning_Outcomes_using_Wiki...
In conversations with many education program leaders over the last few months, I know this report is useful to many of you as well. Having this kind of data on what the impact of Wikipedia assignments is to student learning is helpful for conversations with potential instructors, school administrators, and others. I encourage you to use and share the report widely! We also included all of the data and questions from it under a free license, so if you'd like to repurpose some for your own use, please feel free.
LiAnna