Single Select Question
A single select question presents several options but allows the respondent to choose exactly one, producing a single, unambiguous answer.
Key takeaways
- One stored option id serves as both a score lookup and a branch condition.
- Hesitation, not effort, is what costs completions on a single select.
- Buttons, radios and dropdowns store the same value at different interaction costs.
- Forcing one answer where several are true deletes information invisibly.
- A long option list removes the low-friction advantage the type is chosen for.
In depth
A single select stores one option id per respondent, which makes it the only question type where the answer is also a branch condition. The scoring rule is a lookup rather than a sum, so a change to one option's points affects exactly the people who chose it. Presentation varies without changing the data: large tap targets, radio buttons, or a dropdown all return the same single value, though the dropdown hides the options until opened and costs an extra interaction.
Completion depends almost entirely on whether the options are exhaustive and clearly separate. When a respondent can see their situation in exactly one option, the tap is instant. When they can see it in two, or in none, they hesitate, and hesitation on a supposedly effortless question is where flows lose people. Fewer options make the decision faster but push more respondents into the nearest approximation, which is a quiet accuracy cost you never see in the data.
Its two strongest positions in a funnel are the first screen and any decision fork. First screens use it because one tap turns a visitor into a respondent and the sunk cost carries them forward. Forks use it because a single unambiguous value is what a branching rule needs: company size decides which questions follow, industry decides which result copy renders. In Pivix that same stored value can drive both the score and which sections a tier shows.
Forcing one answer where several are true does more than annoy people; it silently deletes information. A company using three channels reports one, and every downstream segment built on that field is wrong in a way nobody can detect. Single select is also poor for questions with a natural spectrum, where four discrete bands hide the fact that a respondent sat right on a boundary. And a long single-select list is not low friction at all, despite the type's reputation.
Example in practice
How to measure it
Look at the split of answers first. A healthy single select spreads respondents across its options; one option taking the overwhelming majority means the question is confirming something you already knew and could be dropped. An option taking almost nothing is either badly worded or describes a situation your traffic does not contain, and it can be merged into another.
Time on step is the second reading, and on this type it is diagnostic. A single select should be answered in a few seconds; a long dwell means the respondent is deciding between two options that overlap. Back-navigation is the third: people returning to change a single-select answer are telling you the option labels only made sense after they saw the next question.
Common mistakes
The frequent fault is a list that is not exhaustive. Four options cover the situations the team imagined, and everyone else picks whichever is least wrong, which quietly poisons the segment. Before publishing, ask three people outside the team to find themselves in the list; if any hesitates, an option is missing. Adding an other choice is the cheap fix, and reading what people type into it is how the list improves.
The second is using a dropdown out of habit. A dropdown hides every option until tapped, adds a second interaction, and on mobile hands control to a native picker that ignores your styling. For up to about seven short options, visible buttons are faster to answer and easier to read at a glance. Keep dropdowns for genuinely long lists such as country, where showing everything is not an option.
Frequently asked questions
How is single select different from multiple choice?
Single select allows exactly one answer, while multiple choice lets the respondent pick several at once. Choose single select when only one option can be true and multiple choice when answers legitimately coexist.
Does single select improve completion rates?
Yes, because a single tap advances the visitor with minimal effort, single select typically raises completion compared to dropdowns or open text. It is the go-to format for the first step of a quiz funnel.
How do I know a question should be single select?
Ask whether a respondent could honestly tick two options. If yes, it is a multiple choice question and forcing one answer corrupts the field. If no, single select is correct and the remaining work is making sure every respondent finds exactly one option that fits. Company size, primary goal and current stage are typical single-select questions.
Should the first question of a quiz always be single select?
Almost always, because the first screen is where you are asking a stranger to commit and one tap is the cheapest possible commitment. Keep it to three or four options, make them about the respondent rather than about your product, and avoid anything that requires them to look something up. The goal of question one is question two.
Buttons or radio buttons?
Large tappable cards or buttons on anything mobile, because a classic radio circle is a small target and reads as a form rather than a quiz. Radios still make sense in dense settings pages or when the option labels are long enough that a card layout would wrap awkwardly. Whatever you use, the whole row should be clickable, not just the control.
Can a single select branch the quiz?
That is one of its main uses. Because the answer is one value, a rule can map each option to a different next question, a different set of remaining steps, or a different result page. Keep branches shallow: two or three paths that reconverge are maintainable, while a tree that never rejoins doubles the copy you have to write and test.
How should we handle an other option?
Include it whenever your list might not be exhaustive, and put a small text field behind it. Score it as neutral rather than zero, since choosing other says nothing about quality. Read the submitted text every month: recurring answers are options you should have listed, and once one appears often enough it belongs in the list.
Is a yes-no question the same thing?
It is a single select with exactly two options, and it inherits both the speed and the failure mode. Two options are the fastest possible answer, but any question whose honest answer is sometimes or partly will be forced into a false binary. Add a third middle option where reality has one, and reserve yes-no for genuinely factual questions.