Element of implementation fidelity
Whether an intervention is being delivered as intended
Exposure or dose
Whether the amount of an intervention received by participants (frequency and duration) is intended
Quality of delivery
The way that those responsible for delivering the intervention deliver it
How far participants respond to, or are engaged by, an intervention
Identifying unique features of different components of programs and identifying which elements are essential
Complexity of an idea can act as a barrier to adoption - how complex is the intervention?
When aiming to evaluate implementation fidelity, what are the specific strategies put in place to support implementation, e.g. provision of manuals, training and incentives. How were these strategies perceived by those involved in delivery?
The recruitment strategies used to attract individuals to the intervention – what are the challenges to involvement?
What factors at political, economic, organisational and work group levels affected implementation?