Table 1.

The four distinct stages of the United Kingdom's Medical Research Council guidelines for developing and evaluating complex health care interventions.

Stage	Description
1. Development	Identify existing evidence (i.e., systematic review)
	Mixed-methods study to identify how health care interventions operate
2. Feasibility and piloting	Address any uncertainties (e.g., recruitment and retention rates)
	Determine whether the main trial can be done/delivered
3. Full-scale evaluation	Assess clinical effectiveness of health care interventions
4. Implementation	Dissemination and getting research into practice
	Monitoring and long-term follow-up

Note. In this research note, we provide an example of a mixed-method study as part of the development stage, shown in bold text.