In this guide, you'll get clear answers to what open-ended questions are, how to write them, and how to use them in research to uncover richer context, unexpected themes, and verbatim language you can act on.
We'll also cover open-ended questions vs. closed-ended questions, with concrete examples so you can choose the right questions for your research.
We finish with 35 copy-paste examples of open-ended questions that you can simply drop into your next survey.
Open-ended questions invite a free-text response in the respondent's own words rather than limiting them to predefined options. Think of questions that start with "Tell me…," "Describe…," "Why…," or "How…" – they unlock stories, not just selections.
The meaning of open-ended questions, put simply, is that they are designed to explore the why behind the what.
When comparing open-ended questions and closed-ended questions, remember that closed formats (radio buttons, Likert scales, yes/no) are fast to answer, thanks to the predetermined answers possible, and easy to quantify than open-ended ones.
Open formats take longer to analyze but reveal qualitative data, nuance, edge cases, and the language customers actually use. If your team is debating closed vs open-ended questions, start with what you need from the data: is it measurement or discovery?
In other words, chosing closed-ended vs. open-ended questions is about what evidence you need now.
A quick summary:
Open-ended questions are almost always qualitative and give insight into opinions, experiences, and motivations, while closed-ended questions are quantitative, providing numerical data.
Many studies blend open-ended questions and closed-ended questions within the same questionnaire to go deep and broad with the data. That balance is the essence of the best use of closed-ended vs. open-ended questions in applied research.
There's never a "wrong answer" to a survey question, there's just a question that leads to bias or a misunderstanding. Even then, it's a learning experience to improve your questions in a later survey. After all, writing survey questions is challenging – in a recent questionnaire we did of researchers, writing clear and unbiased questions was the biggest challenge in survey design.
Use this simple nine-step checklist to write impactful open-ended questions:
For teams building repeatable programs, host your surveys on a market research platform like Checkbox, which makes it easy to mix question types, automate tagging and export insights. If you're operating in regulated environments, consider an on-premises deployment for compliance and data security. Request a Checkbox demo today.
When thinking about open-ended questions in research, think about how to combine them effectively with your closed-ended questions so that they can expand and explain your quantitative signals. Here's how you can use them across different data-gathering methods:
Add one to two open fields after critical modules. For example, after a Net Promoter Score item, ask "What is the primary reason for your score?"
The most common pattern for open-ended questions in surveys is that they explain the number shared in a closed-ended question. In the context of writing effective survey questions, this equates to context at scale – you have the numbers in the data to make assumptions, and the long-form responses to test those assumptions.
Here are some survey formats where you can use these questions:
Use open questions to follow surprising threads. "What else?" and "Can you give me an example?" are two great instigators for greater insight. You can also start the interview with rapport-building questions to put the interviewee and focus group at ease.
In conversation, asking open-ended questions help you get specific information, spot key differences in psychographic segments and understand the ideas people have behind their answers – not to mention that you can build rapport.
After tasks, prompt "What felt easy or confusing?" Qualitative feedback pinpoints friction you won't see in metrics alone.
These question help you interrogate pain points so you can deliver the best solution for your customers – not to mention getting more deals in your pipeline for similar buyer personas.
Ask respondents to record their experiences over time to reveal triggers and routines you can design around.
By asking the same questions over time, you'll discover how motivations and habits develop – helping you begin to understand the instigating factors behind how people think.
Ask customers what they think about a new feature after they've used it. If done in-app, instantly after a customer has experienced the product, these questions have multiple benefits, the main one being that the user's knowledge of the product is still fresh.
Test sentiment and recall following an advertising campaign.
Data-wise, open responses are usually composed of unstructured text abnd rarely one-word answers. You'll typically:
If you're tracking the voice of the customer, pair open-ended questions with a voice of the customer survey questions library so teams can compare reasons over time. This library will help you get better at composing questions and predicting responses, so you can start to expect specific answers over time.
When planning a study to better understand your audience, use proven quantitative market research survey questions alongside open qualitative questions to ensure you identify the decision drivers.
A frequent question is "are open-ended questions qualitative or quantitative?" The honest answer is that they're primarily qualitative, but once you identify recurring themes, open-ended questions become quantifiable. In practice, the most valuable data will use a blend of both.
Below are a few examples of survey-ready questions organised by objective. Use them as open-ended questions in surveys or adapt them for interviews. They're written to avoid bias and invite respondents to provide more detail.
These examples of open-ended question work well in surveys, interviews, and questionnaires. They'll help you gather valuable information about your respondents.
To let people explain the reason behind their score, add one short open question – "Why?" – right after any important multiple-choice or rating question.
So, what's the purpose of open-ended questions? They reveal motivations, concerns, language, feelings, and edge cases that numbers alone don't.
Build on the examples of open-ended questions to develop surveys and interview scripts that help you better understand your customers, respondents, or population.
Mix open and closed questions to measure and explain, then analyze and categorize to identify recurring themes and understand the nuances of your data.
If you want an ideal solution that lets you create custom surveys and questionnaires, with all the open-ended question options you might need, consider demoing Checkbox.
Open-ended questions uncover the "why" behind behaviors, provide verbatim language you can use, combine with quantitative questions for deeper insights, and surface outliers you'd miss with only closed items.
Use prompts like "Tell me about…," "Why…," "How…," and "Can you give me an example of…," then anchor to a recent experience.
Open-ended questions are primarily qualitative, but once you've identified and counted recurring themes, you can quantify frequencies by segment.



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