Fidelity measures are tools to assess the implementation of models of mental health care. They enable translation of scientific knowledge into patient benefit .
Fidelity measures for complex interventions in mental health services help to define the intervention and measure the services’ adherence to the model specified .
Fidelity scales have been developed for complex mental health services such as Assertive Community Treatment , but there is no existing fidelity scale for Intensive Home Treatment Teams ( Crisis Resolution Teams)
The authors are affiliated with University College London , and this article describes how they developed the scale and tested its feasibility and utility in practice