Table 4 Example topics in the interview guide
Interview Topic | Objective |
|---|---|
• Asked if there was anything unclear about the instructions or the item • Asked if the question was relevant to their experience with migraine • Asked if they could put the question into their own words • Asked to answer the item and if they were able to easily find a response option that fit their experience with migraine • Asked what they considered when answering the item | To document evidence of content validity for the mGI-I for each of three migraine-related subpopulations: migraine patients, KFMs, and treating HCPs |
• Asked how they interpret the difference between response options (e.g., Much Improved vs A Little Improved as well as Much Worse vs. A Little Worse) • Asked what changes they needed to have occur to have experienced improvement or worsening | To document how respondents defined improvement/worsening in migraine severity |
• Asked their preference (and rationale for preference) between the item stems • Asked their preference (and rationale for preference) between the response scales | To aid in selection of most appropriate and comprehensive item to the target population |