Relationship Compatibility Test: What Should It Actually Measure?
You have probably taken a compatibility test before.
Maybe it told you which celebrity couple you are most like. Maybe it asked whether you both prefer nights out or nights in. Maybe it decided you were 87 percent compatible because you both like travelling, dogs and ordering too much food.
Fun? Absolutely.
A reliable basis for deciding whether you should spend the rest of your lives together? Probably not.
Real relationship compatibility is much more interesting than how much you have in common.
A good relationship compatibility test should explore how two people communicate, handle conflict, think about their future and navigate the parts of life that become considerably more important when a relationship gets serious.
So, what should a relationship compatibility test actually measure?
Compatibility Is Not the Same as Similarity
Let's get this out of the way first.
You do not need to be the same person.
You can have different hobbies.
Different personalities.
Different friendship groups.
Different tastes in music.
One of you can spend Sunday morning training for a half marathon while the other considers walking to get a coffee a respectable amount of exercise.
None of that necessarily tells us whether you are compatible.
In fact, research from The Gottman Institute argues that a happy relationship is not simply the result of having lots of things in common. What matters is how couples understand and navigate their differences.
That is a much more useful definition of compatibility.
The question is not simply "How similar are we?"
It is:
"Can the two people we actually are build a life that works for both of us?"
A good relationship compatibility test should help you explore that question.
1. Communication
Almost everything else on this list depends on this one.
Can you tell your partner when something is wrong?
Can you ask for what you need?
Do you feel listened to?
Can you disagree without the conversation immediately becoming defensive?
Can you talk about uncomfortable things?
Communication compatibility does not mean communicating in exactly the same way.
One person might want to talk immediately after an argument while the other needs an hour to think.
What matters is whether you understand those differences and can find a way of communicating that works for both of you.
2. Conflict
A relationship test that asks whether you argue is asking the wrong question.
Most couples argue.
The interesting question is how you argue.
Do disagreements become personal?
Can you apologise?
Does one person shut down?
Do you keep bringing up old mistakes?
Can you eventually understand the other person's point of view?
The Gottman Method specifically uses the phrase "manage conflict" rather than resolve conflict because some differences between couples do not disappear. Healthy relationships need ways of dealing with those differences constructively.
So compatibility is not:
"We never disagree."
It is closer to:
"We know how to disagree without destroying the relationship."
3. Trust
Trust is much bigger than whether someone has cheated.
It is the feeling that your partner has your back.
Do you believe what they tell you?
Can you be vulnerable around them?
Do you feel secure when you are apart?
Can you rely on them when something goes wrong?
Do their actions generally match their words?
The Gottman Institute describes trust and commitment as the two weight bearing walls of its Sound Relationship House, a model used to understand healthy relationships.
That tells us something important.
Trust should not be one throwaway question halfway through a compatibility quiz.
It is fundamental.
4. Values
You do not need to agree about everything.
But some things matter more than others.
What do you believe makes someone a good person?
How important is family?
What does success mean to you?
How do you think people should treat each other?
What matters more, security or adventure?
How important are honesty, loyalty, independence, ambition or generosity?
Values often sit underneath seemingly unrelated disagreements.
An argument about spending £2,000 on a holiday might actually be a disagreement about financial security.
An argument about working late might really be about ambition and what each person believes a successful life should look like.
A meaningful compatibility test should look underneath the surface.
5. Money
Money deserves its own category because it touches almost everything.
Where you live.
What you do for fun.
Whether you buy a house.
How often you travel.
How you raise children.
When you retire.
You can earn very different amounts and still be financially compatible.
The more important questions are about attitudes.
Are you a saver or a spender?
What does financial security mean to you?
How comfortable are you with debt?
Would you combine finances?
What are you ultimately trying to achieve with your money?
Financial compatibility is less about your bank balance today and more about whether you can make financial decisions together tomorrow.
6. Sex and Intimacy
A serious couples compatibility test cannot pretend sex does not exist.
Are you both satisfied with your sex life?
Can you talk openly about what you want?
How important is physical affection?
What makes each of you feel desired?
What does intimacy mean outside sex?
You do not need perfectly matched sex drives.
But you do need enough openness to talk about your differences.
The Gottman Relationship Adviser, for example, includes friendship and intimacy, sex and passion, conflict management, shared meaning, and trust and commitment among the key areas it assesses.
That is considerably more meaningful than asking whether you both fancy Ryan Gosling.
7. Children and Parenting
For couples thinking about marriage, this is a big one.
Do you both want children?
If so, when?
How many?
What happens if having children is difficult?
How would you divide childcare?
Would one person reduce their working hours?
What kind of parents do you imagine being?
Some differences can be compromised on.
Having children is considerably harder to meet in the middle on.
A good marriage compatibility test should explore not only whether you want children, but the expectations surrounding family life too.
8. Family
When you marry someone, their family does not disappear.
Sometimes quite the opposite.
How close are you to your families?
How often do you expect to see them?
Where will you spend Christmas?
How much influence should parents have over your decisions?
Would you want grandparents involved in childcare?
How would you handle a difficult family member?
These questions might not feel particularly important at 25.
They can feel very important at 35.
9. Independence
Being compatible does not mean doing everything together.
Healthy relationships still contain two individuals.
How much time do you need alone?
How important are your friendships?
Are you comfortable travelling without each other?
Do you have your own interests?
How do you feel when your partner makes plans that do not include you?
A relationship should create a shared life without requiring either person to give up their individual one.
10. Ambition and Career
Imagine your partner ten years from now.
Hopefully, they have changed.
So have you.
Maybe one of you wants to build a business.
Maybe someone gets offered a dream job abroad.
Maybe one person wants to work constantly for five years and retire early.
Maybe the other values having as much free time as possible.
Career compatibility is not about having equally impressive jobs.
It is about whether your ambitions can exist alongside each other.
11. Lifestyle
This is where compatibility becomes surprisingly practical.
One person wants five nights out a week.
The other wants five nights on the sofa.
One loves spending money on restaurants.
The other wants to save for a house.
One wants to travel constantly.
The other wants stability.
None of these preferences are wrong.
But everyday compatibility matters because most relationships are made up of everyday life.
Your wedding might be extraordinary.
Your marriage will contain a lot more Tuesdays.
12. Emotional Support
What happens when one of you is having an awful day?
Do you want advice?
A hug?
Space?
Someone to listen?
Someone to tell you everything is going to be fine?
People can love each other deeply while having completely different emotional instincts.
Understanding what your partner needs and being willing to provide it matters more than instinctively reacting in exactly the same way.
13. Friendship
Would you still choose to spend time together if you removed the romance?
It is a simple question, but an important one.
Do you make each other laugh?
Are you curious about each other?
Do you enjoy talking?
Do you genuinely like each other's company?
The Gottman model begins with what it calls Love Maps, essentially developing a detailed understanding of your partner's inner world. It also emphasises fondness, admiration and regularly responding to each other's attempts at connection.
Romance matters.
Friendship gives it somewhere to live.
14. Your Vision of the Future
Perhaps this is the biggest compatibility question of all.
Do you actually want the same life?
Not exactly the same life.
But a future where both people's ambitions, priorities and values have enough room to exist.
Where do you want to live?
Do you want children?
What kind of home do you imagine?
How important is travel?
What role will your careers play?
What does success look like?
What do you want life to feel like?
The Gottman Method describes this as creating shared meaning, where couples develop shared goals, values, rituals and a sense of purpose together.
You are not just choosing someone you love today.
You are choosing someone to build tomorrow with.
A Compatibility Score Cannot Tell You Whether to Get Married
This is important.
Imagine a relationship compatibility test tells you that you are 82 percent compatible.
Great.
What does that actually mean?
Are you supposed to get married at 82 percent?
What about 71 percent?
Is there a couple somewhere cancelling their wedding because they scored 64?
Human relationships are too complicated to reduce to one magic number.
A useful compatibility test should not pretend to make your decision for you.
Instead, it should show you where you align, where you differ and where there might be conversations worth having.
Maybe you are incredibly aligned on values but approach conflict completely differently.
Maybe your communication is brilliant but you have never properly discussed money.
Maybe you want the same future but have very different expectations around family.
Those insights are considerably more useful than simply being told you are a "perfect match".
So, What Should a Relationship Compatibility Test Actually Measure?
Not whether you both like pizza.
Not whether you have the same star sign.
Not whether you would choose the same holiday destination.
A meaningful relationship compatibility test should explore the things that actually shape a life together:
- Communication
- Conflict
- Trust
- Values
- Money
- Sex and intimacy
- Children
- Family
- Independence
- Career and ambition
- Lifestyle
- Emotional support
- Friendship
- Your vision of the future
And, most importantly, it should make you think.
How Compatible Are You Really?
Compatibility is not about finding someone who gives all the same answers as you.
It is about understanding the answers you each give.
Our Relationship Test explores 19 dimensions of your relationship, helping you look beyond surface level compatibility and understand how you align across the areas that matter.
You might discover strengths you have taken for granted.
You might find differences you already knew existed.
You might uncover a conversation you have somehow never had.
It will not tell you whether to get married or break up.
That decision is yours.
It will simply help you understand the relationship you are making that decision about.
Keep reading
Want to put this into practice?
Take the Relationship Test