Table 2.

Definition of outcomes used in Implementation Science

Outcome	Definition
Acceptability	The perception among implementation stakeholders that a given treatment, service, practice, or innovation is agreeable, palatable, or satisfactory
Adoption / Uptake	The intention, initial decision, or action to try or employ an innovation or evidence-based practice
Appropriateness	The perceived fit, relevance, or compatibility of the innovation or evidence-based practice for a given practice setting, provider, or consumer; and/or perceived fit of the innovation to address a particular issue or problem.
Cost	The cost impact of an implementation effort, related to the costs of the particular intervention, the implementation strategy used, and the location of service delivery
Feasibility	The extent to which a new treatment, or an innovation, can be successfully used or carried out within a given agency or setting
Fidelity	The degree to which an intervention was implemented as it was prescribed in the original protocol or as it was intended by the intervention developers
Penetration	The integration of a practice within a service setting and its subsystems; can be calculated in terms of the number of providers who deliver a given intervention, divided by the total number of providers trained in or expected to deliver the intervention, or by the number of eligible patients who receive the intervention divided by the total number of patients eligible for the intervention
Sustainability	The extent to which a newly implemented treatment is maintained or institutionalized within a service setting’s ongoing, stable operations