Evidence-based practice has been interpreted as the use of interventions based on rigorous evidence that has proved to be effective. However, it is now seen to be broader and involves best research evidence, clinical expertise and client values. This is then blended to make decisions about goals and strategies.
This broader definition suggests there are three types of implementation fidelity: program fidelity, process fidelity and values fidelity. For interventions to be effective, all three forms of fidelity need to be observed.
Towards a model of evidence-informed decision making and service delivery looks at some of the implications of this approach for the health sector and a framework that addresses these issues.