The FIRO-B Assessment

Angry boss yelling at team

The FIRO-B Assessment

The FIRO (Fundamental Interpersonal Relations Orientation) instrument helps repair broken relationships and takes good, functional relationships to a higher level. It is the key that unlocks the potential in workplace interactions.

Most working relationships aren’t undermined by a single dramatic falling-out — they’re worn down by small, repeated mismatches that nobody ever quite names. One person wants more involvement than they’re getting; another is giving more direction than anyone’s actually asking for. FIRO-B makes those invisible mismatches visible, giving people the language to understand not just how they behave towards others, but what they actually want in return — and why the gap between the two so often causes friction.

What is FIRO-B?

FIRO-B was developed by psychologist William Schutz in 1958, originally to help the US Navy understand and predict how well people would work together in a team. Since then, it’s become one of the most established tools in workplace psychology — by 1976 it was already ranked the most versatile of 75 widely-used training instruments — and it’s still published today by The Myers-Briggs Company.

The assessment itself is straightforward: 54 short items across six scales, generating a clear picture of someone’s interpersonal needs in three core areas.

The three fundamental needs

Inclusion — the need to belong, to be recognised, and to be part of what’s going on. Someone high in inclusion actively seeks out involvement and connection; someone low in it is content working more independently, on the margins of the group.

Control — the need for influence, structure and decision-making authority. This ranges from actively directing and taking charge, to preferring clear structure provided by someone else, to resisting being controlled at all.

Affection (Openness) — the need for closeness, warmth and personal connection in relationships. High scorers build close, personal working relationships readily; low scorers keep relationships more businesslike and maintain more emotional distance.

Expressed vs. wanted: where FIRO-B gets interesting

This is what sets FIRO-B apart from a simple personality label. For each of the three needs, it measures two separate things: what you express — how you actually behave towards others — and what you want — how much of that same thing you’d like from others in return.

The two don’t always match, and that gap is often exactly where friction comes from. Someone might express high control — stepping up, taking charge, making decisions — while actually wanting very little control themselves, preferring others to just get on with things once a decision’s made. Someone else might rarely express affection openly, while quietly wanting a good deal of warmth and closeness from colleagues. Neither pattern is a flaw. But left unexamined, these mismatches are exactly what turn into “I don’t feel like anyone actually wants my input” or “I don’t understand why they seem so distant” — conclusions people draw about each other that are really just gaps between expressed and wanted behaviour nobody’s ever put into words.

How we use FIRO-B

We use FIRO-B most often when a relationship — between two people, or across a team — has become strained, or when a good working relationship has plateaued and there’s real potential still on the table. Because it separates what people do from what they actually want, it gives us a precise, non-judgemental way into a conversation that’s usually much harder to have without it: not “you’re difficult to work with,” but “here’s a specific, named gap between what you’re both expressing and wanting, and here’s what to do about it.”

Who it’s for

Anyone in a working relationship that’s become harder than it should be, and anyone in a good relationship or team who wants to understand what’s actually driving its dynamics rather than leaving it to chance. It’s particularly effective for leadership pairs, teams going through friction, and any relationship where the same low-grade frustration keeps resurfacing without a clear cause.

[Talk to us about running FIRO-B with your team →]