This type of evaluation is very difficult for a number of reasons. Patients are the chief beneficiaries of interventions but often not able to provide feedback because they are a transitory population or because of how their condition affects them.
This project relied on feedback from artists and hospital staff. What seems to be a very simple request, asking for artists to work on the ward is actually complicated and difficult. It presents challenges but also huge rewards. The main challenge is how to work with patients on the ward.