People don't always give detailed answers to every question, so you might need to help them to provide you with the information you need. Repeating the same question isn't a good strategy. Instead, use follow-up questions to come at it from a different angle.

Here are some best practices for asking follow-up questions:

• Ask your original question in a slightly different way. If you get a vague response, it's worth rephrasing the question for better clarity.
• Connect your interviewee's answers together. This helps clarify the participant's position and shows that you're listening. For example, link their response to a previous one by saying, "Is that what you meant earlier when you said…?"
• Dig deeper by using the 5 whys method. This technique helps you get closer to the root cause. For example, the participant says they think your interface is too messy. Ask them why they think it's messy. If they think it's messy because the navigation bar has too many items, ask them why they don't like having too many items in the navigation bar, and so on.[1]