What this quiz measures
Compatibility is often framed as a verdict: two people fit, or they do not. Everyday life gives you better questions. How much company does each person want? Which routines make a shared home easier? How do you handle an unfamiliar plan or a disagreement about what comes next? This version starts with one person answering 24 questions about their usual tendencies. The answers describe that person only. They do not show whether a relationship will work, and they do not make a decision for either partner.
After the first person finishes, the flow offers an invitation for their partner to take the same 24 questions. Sending that invitation does not send the first person's answers, a score, or a profile. The partner decides whether to participate and completes a separate set in their own time. No combined comparison is shown while one person is still deciding or answering. No personal answer is revealed to the other person; the shared view is limited to the six selected facet percentiles after both have explicitly chosen to take part and finished their own questions.
The six areas give you specific topics to discuss: enjoyment of company and crowds, order around belongings, preference for variety or familiar routines, self-reported responses to disagreement, interest in abstract ideas, and positive feelings. The comparison shows both profiles side by side, including differences and similarities. A difference can be useful context without being a problem; the same percentile does not prove that two people behave alike. No overall match number, ranking, or forecast is calculated.
The report keeps three kinds of statement visibly separate. First, measured values: each person's percentile on these six selected facets, with the reference group and scale limits explained. Second, research context: in a cross-sectional study of 1,294 male–female couples, similarity in Big Five traits and the different facets studied was not robustly associated with relationship or life satisfaction. That study used the BFI-2-S, not these six IPIP-NEO facet scores. A separate analysis of married couples in Australia, the UK and Germany found broad Big Five similarity explained less than 0.5% of life and relationship satisfaction variance after accounting for each person's and their partner's traits. A longitudinal study found little overall contribution from similarity, alongside one small association between broad agreeableness similarity and women's experience of support; that does not test the four disagreement-response items here. These are observed associations, not causes or predictions for a particular pair. Third, clearly labelled everyday hypotheses to discuss. For example, if one person enjoys large groups and the other avoids crowds, you might agree which events to share and where to leave room for different plans. That is a practical possibility to test, not a research finding about this couple.
Use any comparison as a starting point for a conversation about observable habits. If routines differ, decide which shared tasks need an explicit agreement. Ask what each person wants, what arrangement feels workable to both, and when to revisit it. Keep a research note attached to the exact claim it supports, and label possible situations as hypotheses rather than results. The inventory does not measure safety, trust in a particular moment, respect, shared values, workload, or the quality of a relationship. You and your partner decide which differences matter and how to respond to them.
No comparison appears before both people choose to take part and finish their own 24 questions. The comparison shows six selected facets side by side, not either person's answer-by-answer responses. It includes a source-bounded account of what couple studies found, with clear limits where the researchers used different measures, and clearly labelled everyday examples to discuss. Neither research associations nor those examples prove something about this pair. No combined number or forecast can tell you whether a relationship will succeed. This is conversation material, not a test of whether either person is a good partner or whether you should stay together.
The six things it looks at
The six selected facets cover enjoyment of company and crowds, order around belongings, variety and familiar routines, responses to disagreement, abstract interests, and positive feelings. They are conversation prompts, not a compatibility score.
Gregariousness
How much you actively want company, crowds and the noise of a group around you.
Most people score between 6 and 17 out of 20.
- Love large parties.
- Talk to a lot of different people at parties.
- Prefer to be alone.
- Avoid crowds.
Orderliness
How much structure you keep around you: lists, systems, clear surfaces.
Most people score between 7 and 18 out of 20.
- Like to tidy up.
- Often forget to put things back in their proper place.
- Leave a mess in my room.
- Leave my belongings around.
Adventurousness
Preference for the unfamiliar over the routine — new places, new food, new methods.
Most people score between 9 and 17 out of 20.
- Prefer variety to routine.
- Prefer to stick with things that I know.
- Dislike changes.
- Am attached to conventional ways.
Cooperation
How much you would rather compromise than fight, and what it takes to make you fight.
Most people score between 10 and 20 out of 20.
- Love a good fight.
- Yell at people.
- Insult people.
- Get back at others.
Intellect
Enjoyment of abstract ideas and argument, measuring appetite rather than ability.
Most people score between 11 and 20 out of 20.
- Love to read challenging material.
- Avoid philosophical discussions.
- Have difficulty understanding abstract ideas.
- Am not interested in theoretical discussions.
Cheerfulness
How readily good feeling shows up — the joy end of extraversion, not politeness.
Most people score between 10 and 19 out of 20.
- Radiate joy.
- Have a lot of fun.
- Love life.
- Look at the bright side of life.
What this is built on
Defaults runs on the IPIP-NEO-120, a public-domain 120-item Big Five inventory developed by Dr John A. Johnson. Each short quiz uses 24 of its actual items, word for word, and scores them against Johnson's published adult norm tables rather than rescaled against your own answers. The same 24 count toward the full 120.
Evidence boundary for this feature: the IPIP-NEO-120 is an individual self-report inventory, and Johnson's norms describe individual scores against a reference group. Couple studies of the broad Big Five and some other facet measures find that similarity usually adds little to satisfaction or well-being after actor and partner effects; one longitudinal study reported a small agreeableness-similarity association with women's experience of support. Those studies do not validate these six four-item IPIP facets as a paired measure, establish that score gaps cause friction, or predict relationship success. Keep study findings distinct from individual percentiles and from everyday hypotheses to test. The view summarizes six selected facets only; it cannot assess a relationship or replace either person's judgment and consent.
- Johnson, J. A. (2014). Measuring thirty facets of the Five Factor Model with a 120-item public-domain inventory. Journal of Research in Personality, 51, 78-89. https://doi.org/10.1016/j.jrp.2014.05.003
- International Personality Item Pool. Johnson IPIP-NEO-120 items. https://ipip.ori.org/30FacetNEO-PI-RItems.htm
- Weidmann, R., et al. (2023). Trait and facet personality similarity and relationship and life satisfaction in romantic couples. Journal of Research in Personality, 104, 104378. https://doi.org/10.1016/j.jrp.2023.104378
- Dyrenforth, P. S., et al. (2010). Predicting relationship and life satisfaction from personality in nationally representative samples from three countries. Journal of Personality and Social Psychology, 99(4), 690–702. https://doi.org/10.1037/a0020385
- van Scheppingen, M. A., et al. (2019). Longitudinal actor, partner, and similarity effects of personality on well-being. Journal of Personality and Social Psychology, 117(4), e51–e70. https://doi.org/10.1037/pspp0000211
Common questions
How does the two-person flow work?
One person answers 24 questions first. After they finish, the flow offers an optional invitation for their partner to answer the same set separately. The comparison of six selected facet percentiles appears only after both people have explicitly chosen to participate and completed their questions. The report separates measured values, source-bounded research context, and labelled everyday hypotheses to discuss. Both people must be 18 or older and opt in independently.
What does my partner see?
The shared view compares six selected facet percentiles after both people participate. It does not show either person's individual answers, and an invitation does not reveal the inviter's profile. Each person needs to choose to take part before any paired comparison could appear.
Can a score tell us whether our relationship will last?
No. There is no overall match score or relationship forecast in this flow. The inventory measures individual tendencies; it does not measure how you treat each other, what you value, or what happens when plans change. Those choices belong to both people.
What if my partner does not want to answer?
Participation is optional. If your partner declines or does not finish their separate 24 questions, the paired comparison does not appear and their answers are not shared. You can still use your own result to choose a practical topic to discuss, without treating it as a conclusion about the relationship.