What Is Open-Ended Question?
A question that lets respondents answer in their own words, with no predefined list of choices to pick from.
An open-ended question — “What’s the main reason for your score?”, “What would make this product better for you?” — gives respondents a blank text field instead of a fixed list. That freedom is the point: open-ended answers surface reasons, language, and edge cases a closed-ended list would never have anticipated.
The tradeoff has historically been analysis cost: reading hundreds or thousands of free-text answers by hand doesn’t scale, which is why many teams either skip open-ended questions or only sample-read a fraction of the responses. Response rates also tend to run lower on open-ended questions than closed-ended ones, since typing takes more effort than clicking.
The analysis problem is the part that’s changed most in the last few years — AI theme detection can now sort a pile of free-text answers into themes in the time it used to take to read a handful by hand.
Example
What's the main reason for your score?
Free text, following an NPS rating.
Sources
- Dillman, D. A., Smyth, J. D., & Christian, L. M. (2014). Internet, Phone, Mail, and Mixed-Mode Surveys: The Tailored Design Method (4th ed.). John Wiley & Sons.
How to Use Open-Ended Questions in SurveyRock
SurveyRock's theme detection groups open-text answers by what people mean, not the exact words they used, and surfaces the themes they keep raising, with an AI executive summary that turns hundreds of free-text answers into something you can hand to stakeholders as-is.