PAIRWISE COMPARISON SURVEYS
Rank people’s preferences using head-to-head voting surveys
Drag-and-drop ranking breaks for long lists of 10 or more options. OpinionX’s pairwise comparison methods turns your long list into a series of head-to-head votes, making it 10x easier to rank everything by relative importance.
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What is a pairwise comparison survey?
Pairwise comparison surveys rank a list of options by showing participants two random choices at a time and asking which they prefer. Across many pairs and participants, every option earns a score for how often it won.
On OpinionX surveys, this method is called Pair Rank. Each participant votes on a set number of pairs and the survey automatically calculates the win rate for each option. Build a custom survey with a pairwise comparison section using OpinionX’s free survey builder for advanced market research methods.
Use it when...
Your list is long, 10 options or more, and each option needs a sentence to read: customer problems, feature requests, research questions, strategy bets.
Best for...
Product teams stack-ranking customer problems, innovation teams sorting a wall of workshop ideas, and brand teams choosing between logos or creatives with Image Rank.
Alternative methods...
MaxDiff when you need robust data from fewer votes.
Order Rank when the list is under 10 and drag-and-drop will do.
Conjoint when you're comparing bundles, not a single list of items.
How Pairwise Comparison surveys work on OpinionX
Simple setup and sample size support
Paste your list of options in one go and let OpinionX handle pairs selection. Use the built-in calculator to choose how many pairs each participant should vote on for robust results.
Understandable scoring you can stand behind
Powered by transparent scoring models your whole team can understand, OpinionX uses a simple win-rate formula to measure each option's relative importance and rank the full list.
Full flexibility, no limitations
Add as many options as your poll needs, set a custom number of votes per person, import pictures or GIFs, set up multiple separate Pair Rank sections in one survey, and combine it with other question types.
Filter by group to identify differences in opinion
Filter your results with one click, view two groups side by side, or create a giant table of up to 30 segments to quickly see the how different types of people voted.
Test a real Pair Rank survey
Vote on the Pair Rank sample survey below and view the interactive results dashboard at the end
All the Pairwise Comparison results you need, generated automatically from your survey data
OpinionX turns head-to-head votes into readable results in real time, together with all the report types you need to answer your most important research questions.
Survey Scores
Every option ranked by Win Rate, with the wins and appearances behind each score, exportable at participant level.
Preference Chart
The same ranking drawn as a bar chart, so the gap between options is visible at a glance.
Compare Tab
Two participant segments side by side across the whole list, with the rank change per option between them.
Segments Tab
Win Rate for every option in every segment in one heatmap crosstab, with outliers coloured to stand out.
Ready to set up your head-to-head voting poll?
Pairwise comparison is available on every plan
✓ 25 participants per survey
✓ Unlimited surveys
✓ Unlimited researcher seats
✓ Full analysis & exports
✓ Unlimited participants per survey
✓ Unlimited researcher seats
✓ Advanced analysis & data enrichment
✓ Custom exports
✓ SAML SSO & MFA
✓ Private team folders
✓ White-labelling
✓ Procurement & prepaid experts
Learn more about Pairwise Comparison
FAQ
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By Win Rate: an option's wins divided by every pair it appeared in, shown as 0 to 100. An option that won 8 of 10 pairs scores 80. Elo and Glicko exist too, but their scores are hard to explain, which is why OpinionX dropped Glicko-2 in 2023.
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Enough that every pair is seen at least three times. Total pairs are n(n-1)/2, so 12 options make 66 pairs and 198 votes. At 10 votes each that's 20 participants; at 15 votes, 14. The Pair Rank builder calculates this for you as you set it up.
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Both rank long lists. Pairwise comparison suits options that take a sentence to read, since participants weigh two at once. MaxDiff shows four or five short options and asks for best and worst, collecting more data per screen. Short labels, MaxDiff. Full statements, pairwise.
Turn the list nobody could order into a ranked result
By breaking it down to two random options at a time, OpinionX helps you measure what people really care about.