Open-ended survey questions that get real reasons.

Underheard turns “unclear” into a reason you can use. Spoken follow-ups explain the customer’s experience, with themes and source quotes in one report.

A customer considering a question
English, United States
Customer, first answer

“Unclear.”

Underheard, following up

What felt unclear?

Customer, explaining

“Was that price for one delivery or a whole month?”

Customer research with Underheard
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What are open-ended survey questions?

Open-ended survey questions ask people to answer in their own words. You give them a topic, such as their last order, rather than a fixed list of choices. Their reply tells you what stood out and gives you language your team would never have written.

The useful part is the experience behind that reply. “Unclear” names a problem, but leaves your team guessing about the fix. Underheard asks what felt unclear while the customer is still there. You hear the missing detail and carry it through to the report.

You can use an existing survey to choose a topic for deeper interviews. Invite the customers whose experience matters and ask them to describe a recent event.

Why are survey comments too short?

A broad question leaves customers deciding what to explain and how much to type. On a phone, a single word is an easy way to finish. A question about a feature they never used asks them to guess. Repeated comment boxes give them the same task again.

Start by narrowing the question to something the customer remembers. Ask what happened on their last visit, order or support request. Underheard hears the answer and follows the detail they mention, so “slow” becomes the wait that interrupted their day.

Check completed responses as well as completion rates. You need an explanation you can act on. A submitted form with a one-word answer still leaves that work ahead.

More detail, on their time.

Let customers answer out loud when they are ready. Underheard asks the next question while the experience is still in the conversation.

When interviews happen

MTWTFSS0:008:00Office hours18:0024:00
47% outside office hours53% inside office hours
8x1

the words people type in a comment box, in customer feedback

47%2

of interviews happen outside office hours, across hundreds of people

120+

languages for your customer conversations

Spoken follow-ups or typed open-ends?

UnderheardTyped open-ended questions
First replyCustomers explain their experience out loud.Customers type into a comment box.
A vague answerAsks about the detail the customer mentions.Keeps the wording the customer submits.
Next questionFollows what that person just said.Moves to the next question in the form.
AnalysisThemes and counts, with quotes linked to interviews.Group the submitted comments into themes.
The reasonHear what happened and why it mattered.Read what the customer chose to type.

Find the reason inside “unclear”.

Underheard connects the theme to the words behind it. Your team sees which part of the price customers misunderstood before rewriting the offer.

Separate the meanings.

See which details customers struggled to understand.

Hear the explanation.

Keep the question beside the customer’s own words.

Bring the evidence along.

Share the findings with the team changing the page.

How do you analyze open-ended responses?

Group answers by meaning, count each theme and read the comments behind it. For each finding, ask whether the customer described what happened or simply gave it a label. Keep different causes separate, even when people use the same word.

  • Read in contextRead the question with the whole answer. “Expensive” can describe the total, a fee or the value someone expected.
  • Group the reasonsGive each theme a clear meaning. Put billing confusion and delivery costs in separate groups when customers describe different problems.
  • Count peopleSay how many people mentioned each theme and how many answered. One person can describe more than one issue.
  • Check the exceptionsRead answers that challenge your main finding. They help you see which customers need a different change.

Underheard does this work on the spoken interviews. You review themes, counts and supporting quotes, then open the source conversations to check the conclusion.

What can old comments tell you?

Old comments help you choose what to investigate next. Read a sample, mark the missing details and decide whose experience would explain them. A theme called “confusing” is a starting point for a new question.

If your comments already name the broken step, use that evidence. When a comment stops at a label, invite customers to explain that part of the experience in an Underheard interview. Ask about a recent example and follow the words they use.

Keep the two sources clear in your readout. The survey tells you what people typed. The new interviews explain the reasons they describe when you ask further.

Ask about one remembered moment.

Tell Underheard which customer decision you need to understand. It drafts the interview guide, and you edit the questions and follow-up settings before inviting anyone.

Which questions get useful detail?

Ask about an event, then probe the detail the customer brings up. A useful probe asks for an explanation without suggesting your own cause. Use these examples to sharpen the questions in your guide.

  • After a purchaseStart with “Tell me about placing your last order.” If they mention a surprise, ask “What did you expect instead?”
  • After supportAsk “What happened when you last asked for help?” Follow a mention of waiting with “What did that delay affect?”
  • After a product taskAsk “Walk me through the last time you tried to share a file.” Then ask about the step they found difficult.
  • After a cancellationAsk “What was happening when you decided to cancel?” Follow the reason they give with a request for a specific example.

Keep each question focused on one thing. Let the customer finish before moving on. Underheard listens to the full reply and chooses a relevant follow-up from what was said.

Understand the answer across markets.

Underheard interviews customers in 120+ languages and brings the answers into one report. You compare the reasons across markets, with source interviews behind the themes.

How do you collect fuller answers?

Choose the decision first, then the people whose recent experience can explain it. Underheard drafts your guide from the brief. You edit it and try a conversation before opening the study. Give a short answer yourself and hear which detail the interviewer asks about.

Invite your own customers by link, or use Underheard’s panel with your quotas. Participants join on a phone or laptop, with nothing to install. Everyone is told at the start they are talking to an AI. Voice-to-voice. Text and video available.

A study takes a couple of hours to under a week. Underheard runs hundreds of customer interviews in a week. You spend your time choosing what to learn and deciding what the evidence means.

What should you change afterward?

Match each proposed change to the reason customers described. A confusing billing period calls for clearer price wording. A surprise delivery charge calls for an earlier explanation of the total. Those are different decisions, even when both started with “unclear”.

Share an Underheard report link or export PowerPoint, PDF or Markdown. Keep the quotes and source questions beside the recommendation so colleagues can inspect the evidence. After changing the experience, ask customers about a new recent event and check what changed.

For more on the conversation itself, read about AI-moderated interviews. To hear individual customer reasons without assembling a group, explore focus group alternatives.

Questions about better survey answers

How do I write better open-ended survey questions?

Name a recent experience and ask the customer to describe it. Keep each question to one topic, then follow the detail in their answer.

Why do people leave one-word comments?

A broad request and the effort of typing make a short reply easy. Underheard follows that first answer with a question about what the customer meant.

How do I analyze open-ended survey responses?

Group comments by meaning, count the people mentioning each theme and read the supporting answers in context. Underheard turns its interviews into themes with counts and source quotes.

What is a probing question?

A question about something the customer just said. “What happened at that step?” asks for detail while leaving the explanation to them.

Can I follow up with my own survey respondents?

Yes. Invite them to an Underheard study by link through your own channels. Focus the interview on the experience your survey left unexplained.

Can customers answer in their own language?

Yes. Underheard supports 120+ languages and combines the answers into one report, with the interviews behind each finding.

Do customers know the interviewer is AI?

Yes. Everyone is told at the start they are talking to an AI. They describe their own experience in an individual conversation.

How long does the study take?

A couple of hours to under a week. Customers join when they are ready, and Underheard conducts many interviews at once.

Can I check the evidence behind a theme?

Yes. Open the source interviews, read the quotes with their questions and check what customers meant before deciding on a change.

Can I share the results with colleagues?

Yes. Share a report link or download PowerPoint, PDF or Markdown. Your team can trace the findings to the conversations behind them.

1 Underheard voice interviews averaged about 112 words per person across 283 interviews, 2 October 2026. Typed answers to an open survey question average 12 to 14 words, Lenzner, Hoehne and Gavras, 2024.

2 Across hundreds of people. Interviews for our European customers held before 08:00, after 18:00 or at weekends, Zurich time.

Hear the reason behind the word.

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