Understanding the value of adhering to or adapting evidence-based interventions: a study protocol of a discrete choice experiment.

The project will offer unique insights into decision-making processes that influence how EBIs are used in practice. Such knowledge is needed for a more granular understanding of how practitioners manage the fidelity-adaptation dilemma and thus, ultimately, how the value of EBI implementation can be optimized. This study contributes to our knowledge of what happens once EBIs are adopted-that is, the gap between the way in which EBIs are intended to be used and the way in which they are used in practice.