Table 2 Questions to guide selection of the expert engagement method

1. What is the research question you intend to answer with the expert activity?

2. What is the representativeness you aim to achieve in the expert activity?

3. What is the dedicated funding available?

4. To which resources (e.g. staff, time, online software, meeting room) do you have access?

5. What is the time-frame for your expert engagement activity?