La scienza del matching: cosa predice il successo relazionale?

Can an algorithm predict whether two people will be happy together? The honest answer is: it depends on what you measure.

In 2017, Samantha Joel and colleagues published a groundbreaking study in Psychological Science. They used machine learning to predict which speed-daters would feel a click. Il risultato was startling: individual characteristics (personality, preferences, values, demographic data) could explain only 1 per cento of the variation in romantic attraction. The remaining 99 per cento lay in the unique dynamic between two people. It is not who you are as an individual that determines the success of a relationship, but how you function together.

"Romantic chemistry is fundamentally unpredictable from individual characteristics alone."

— Joel et al., Psychological Science, 2017

What Eli Finkel discovered about dating online

Psychologist Eli Finkel of Northwestern University analysed the complete landscape of dating online research in 2012. His conclusion, published in Psychological Science in the Public Interest, was devastating for the dating industry: the matching algorithms of existing platforms are not scientifically supported. They measure the wrong things.

"The matching algorithms that these sites use are not likely to be any more effective than the alternatives that they have replaced."

— Finkel et al., Psychological Science in the Public Interest, 2012

Where platforms like Parship match on personality types (Big Five), the research shows that personality similarity in itself barely predicts whether two people will be happy. Two extraverted people are not automatically a good match. Neither are two conscientious people. Cosa predice it: how two people function together. How they respond to each other's emotions. How they deal with conflict. Whether they turn towards each other or away.

"The most important thing is to turn towards each other's emotional needs."

— John Gottman, Gottman Institute

Finkel's conclusion was not that dating online is pointless. His point was that the enormous potential of technology is being wasted by measuring the wrong factors. If you are able to measure the dynamic between two people before they meet, you have a tool that is more powerful than any traditional matchmaker.

The three layers of matching

Based on this research, Onedayte has developed a three-layer matching system that filters step by step, from coarse to fine.

Layer 1 is the dealbreaker filter. Binary, no nuance. Smoking, desire for children, religion, maximum distance. If a hard dealbreaker is triggered, the pair does not proceed to layer 2, regardless of how high the potential compatibility on other dimensions might be. This prevents you from investing time in someone with whom a fundamental mismatch exists.

Layer 2 is compatibilità dell'attaccamento. The Scansione dell'Attaccamento measures anxiety (fear of abandonment) and avoidance (discomfort with intimacy) on continuous scales via 12 scenario questions. Pairs with a compatibility score below 0.30 are not shown. The most high-risk combination, anxious combined with avoidant, is filtered out unless one of the two partners exhibits sufficient secure characteristics. This is the gate that prevents the most destructive mismatches.

Layer 3 is the weighted compatibility score. This is where all dimensions measured by the Conversazione con il Doctor and the Match Booster come together: responsività emotiva (22 per cento of the score), stile di conflitto with Four Horsemen detection (18 per cento), shared values (15 per cento), fondness and admiration capacity (12 per cento), repair ability (10 per cento), and several additional dimensions. The end result is a score from 10 to 99 per cento that determines which matches are shown and in what order.

Why Onedayte matches differently

The difference from other app di dating is not that Onedayte has a smarter algorithm. La differenza è that Onedayte collects different data. Through the Scansione dell'Attaccamento (12 scenario questions) and a conversation with an AI-powered Dating Doctor (12 to 15 messages), dimensions are measured that no profile can capture.

The Dating Doctor is not a questionnaire. It is a conversation that progresses from safe to vulnerable, based on principles of Emotionally Focused Therapy. It analyses not only what you say, but how you say it. Are you defensive when probed about conflict? Do you withdraw at emotional questions? Or do you respond openly and reflectively? Those nuances are the data points that make the difference.