What closeness means
People say a relationship is “close” when they feel connected. Researchers often split that everyday idea into measurable pieces. The Relationship Closeness Inventory focuses on how much another person is woven into your time, your habits, and your expectations — not on whether you use the word “love.”
Frequency: how much you are together
One signal of closeness is simply how many hours you share, especially one-on-one. Roommates and co-parents may log high hours without feeling romantically close; long-distance partners may log low hours while still feeling strongly bonded. Frequency is necessary information, but it is never the whole story.
Diversity: what you do together
Doing many kinds of activities together — errands, meals, recreation, quiet time — suggests a relationship that touches several areas of life. A friendship built around only one context (the same gym class, the same online game) can still be meaningful, but the inventory treats broader overlap as a sign of interconnectedness.
Strength: how much they shape you
Influence items ask whether this person affects your moods, values, social calendar, spending, and self-image. Future items ask whether they appear in your plans for housing, career, children, or travel. High strength with low frequency might describe someone you do not see often but think about constantly. High frequency with low strength might describe a pleasant coworker you enjoy at the office but rarely consider outside it.
Patterns that look contradictory
It is normal for the four parts of the inventory to pull in different directions. You might spend many hours together (high frequency) while disagreeing that they influence your long-term goals (lower future orientation) during a uncertain phase of the relationship. Talking about which dimension feels off is often more productive than debating a single percentage.
How this site uses the idea
The online test rolls frequency, diversity, influence, and future plans into one score for simplicity. For a fuller picture, read How it works, then take the inventory with those four lenses in mind.