User interviews are one of the most powerful tools in the UX research process. Through structured conversations, designers can gather valuable information about how users think, what problems they face, and what expectations they have when interacting with a product or service.
A well-run interview can uncover insights that would otherwise go unnoticed in data analysis or quantitative surveys. But to be effective, interviews need to be properly planned, asking the right questions and avoiding the most common mistakes that can skew results.
Why are user interviews essential in UX?
The information gathered in user interviews has a direct impact on design decisions. It's not just about collecting opinions — it's about understanding users' real motivations, expectations, and difficulties.
Key benefits of user interviews
- They provide real context. Users can explain their experiences and the reasoning behind their decisions in detail.
- They reveal hidden problems. Sometimes users face difficulties they don't report in surveys or usability tests.
- They help validate hypotheses. They confirm whether the design team's assumptions actually reflect the user's experience.
- They deliver qualitative insight. They complement numerical data with deeper information about behaviors and emotions.
Interviews in UX aren't just useful for uncovering problems — they also help identify opportunities for improvement that can make a real difference in the user experience.
Preparing before the interview
The key to a successful interview lies in preparation. Before talking to users, it's essential to define objectives, structure the conversation, and make sure the setting supports gathering relevant information.
1. Define the purpose of the interview
Before you start, you need to be clear on what you want to learn. Some common goals include:
- Identifying problems in a product's navigation.
- Understanding how users make decisions within an interface.
- Exploring frustrations and pain points in a specific usage flow.
- Validating design ideas before implementing them.
2. Choose the right participants
The success of the interview depends largely on the users you select. Some recommendations include:
- Look for profiles that represent the product's target audience.
- Ensure diversity in age, digital experience, and context of use.
- Confirm that participants have a real connection to the product or problem you're researching.
3. Prepare a flexible script
It's important to structure the conversation without making the interview feel rigid or forced. A well-designed script should:
✔ Include open-ended questions that encourage detailed answers.
✔ Follow a logical flow, starting with general topics before diving into specifics.
✔ Stay adaptable enough to explore unexpected answers.
Keeping the conversation natural is key to helping participants feel comfortable and share genuine information.
Open vs. closed questions: how to ask the right ones
How you phrase your questions can determine the quality of the insights you get. There are two main types:
Closed questions
These produce direct, limited answers, usually a "yes" or "no" or a choice among predefined options.
Example:
❌ "Do you like the app?" (The answer will simply be yes or no, with no further detail.)
Closed questions are useful in quantitative surveys, but they don't lend themselves to exploring problems in interviews.
Open questions
These allow for detailed answers and help uncover the reasoning behind the user's experience.
Example:
✅ "How did you feel the last time you used the app to buy something?" (The user can describe emotions and difficulties.)
Tips for asking effective questions
✔ Avoid questions that hint at the expected answer.
✔ Encourage users to share personal experiences.
✔ Use follow-up questions to dig deeper into important topics.
Techniques for surfacing deep insights
Asking questions isn't enough — you also need techniques that help you extract truly valuable information.
1. The "5 whys" technique
This involves asking "why?" repeatedly to uncover the root cause of a problem.
Example:
"Why didn't you finish registering on the app?"
"Because the form was too long."
"Why did it feel long to you?"
"Because it asked for information I didn't think was relevant."
"Why didn't you think it was relevant?"
"Because I didn't understand what it would be used for."
This technique helps you dig into problems that might look superficial at first glance.
2. Active listening and reflection
Showing genuine interest and reflecting back what the user says builds trust and helps you gather more detail.
Example:
User: "Sometimes I can't find the payment option."
Interviewer: "If I understand correctly, this has happened to you several times — you look for the payment option and can't easily find it. Can you tell me more about when that happens?"
3. Asking for concrete examples
Requesting specific examples helps avoid vague or generalized answers.
Example:
❌ "Do you usually have problems using the app?" (Too general.)
✅ "Tell me about a time you tried to do something in the app and it didn't work the way you expected." (Forces the user to describe a real situation.)
Common interview mistakes and how to avoid them
Even experienced researchers can make mistakes that affect the quality of the answers they get.
1. Asking leading questions
Asking "How useful do you find our new feature?" can lead to biased answers.
Instead, ask "How has the new feature worked out for you? Tell me about your experience."
2. Interrupting or rushing the answer
Silence is a powerful tool. Sometimes participants need a few seconds to reflect before answering.
3. Not adapting your language to the user
If the user isn't technical, using complicated terms can confuse them and hurt the quality of their answers.
4. Not recording answers accurately
Taking notes or recording the session (with consent) is key to not losing important information.
Quick guide to successful interviews
- Clearly define your objective before the interview.
- Select participants who represent your target audience.
- Prepare a flexible script with open-ended questions.
- Apply deep-dive techniques like the "5 whys."
- Avoid bias and leading questions.
- Record answers in detail for later analysis.
User interviews are a key tool in UX, but their effectiveness depends on preparation and execution. Asking the right questions and encouraging a natural conversation lets you gather insights that genuinely shape the user experience and guide the design of more intuitive, functional solutions.
