Table 1 Example structured prompts, adapted from Willis (2005) [32]

•What does that term mean to you as it’s used in the question?

•What were you thinking about when I asked that question?

•How did you come up with that answer?

•How easy or hard was it to determine your answer?

•How did you decide on this answer? How did you decide on this category response?

•How well does this category response apply to you?

•Does the term used in this question sound OK to you, or would you use something different?