Table 1 Interview questions by domain
Domain | Interview questions | |
|---|---|---|
Comprehension | Closed-ended, Likert-scale responses on: • Perceived ease of understanding (1 = very easy to understand; 5 = very hard to understand) • Complexity of information (1 = not at all complicated; 5 = very complicated) | |
Open-ended questions to explore: • Participants’ understanding of the study’s purpose and procedures, randomization and placebo, voluntariness, and potential study benefits and risks • Aspects of the document that made it easier or harder to understand the consent information | ||
Acceptability | Usability | Open-ended questions on features that participants found easier or harder to navigate |
Satisfaction | Closed-ended, Likert-scale responses on: • Overall satisfaction (very satisfied; pretty satisfied; pretty unsatisfied; very unsatisfied) • Amount of information presented | |
Open-ended questions on aspects participants liked the most and least about each eIC document | ||
eIC approach preference | Open-ended questions on participants’ perceptions of which eIC: • Better informed them about the study • Was easiest to use • Was preferred overall • Would make them more or less likely to participate in the study | |
Open-ended questions on overall approach preference | ||