I have been involved with many co-produced research projects with partners in Wester Hailes, Edinburgh.
In the last of these we were interested in how you might evaluate the outcomes of research co-produced with community partners. At the end of the project we produced the following report which provides a guide for communities and academics about getting involved in co-produced research with University-based partners, but also working to maximise the positive outcomes for communities and understand what these outcomes are. The first few pages provide a handy two-pager of "Learning Points" and the rest of the report expands on these:
Matthews P, Astbury J, Connelly S, Brown L, O'Brien D, Brown J & the Community of Wester Hailes (2015) Doing and evaluating community research - A process and outcomes approach for communities and researchers. http://hdl.handle.net/1893/22080