A response to Ben Davis’s article, “A Critique of Social Practice Art: What does it mean to be a political artist?” by Elizabeth Grady:
A multifaceted approach that allows for the voices (and often conflicting perceptions) of multiple stakeholders (artists, community leaders, partner organizations,…) to be heard, with parallel statistics about participation and community makeup is a good start. This combines theories of change with ethnographic methods of evaluation and dialogic approaches like collaborative action research, participatory action research.
More details here.