A 360 assessment measures how a leader is experienced by the people around them, which is valuable precisely because it differs from how the leader experiences themselves. Its most useful output is that gap, and the pattern across rater groups. It misleads when it is read as a measure of who the leader is rather than how they land, when the raters are few or politically positioned, and when it is used to decide rather than to inform. A handful of structured interviews often yields more than a long anonymous survey.
The 360 is the most widely used assessment in executive coaching and, in my experience, the most widely misread. Leaders receive a report full of bar charts and anonymous comments and draw from it either a verdict on their character or a list of enemies. Neither reading is useful. I want to describe what the instrument actually measures, how I use it, and where I have learned not to trust it.
What a 360 Measures
It measures effect. Not intention, not capability, not character: effect. When a chief executive's direct reports rate her low on "creates an environment where people can disagree," they are not reporting on her values. They are reporting that, in rooms with her, they do not disagree. She may intend the opposite. She may believe she has created exactly that environment. The instrument is telling her that whatever she intends, it is not landing.
That is why the most useful number in any 360 is not a score but a gap: the distance between how the leader rates themselves and how others rate them. A small gap means the leader has an accurate picture of their effect, whatever that effect is. A large gap means they do not, and a leader who does not know how they land cannot adjust. Closing that gap is often the whole of the early work.
The second most useful signal is the pattern across groups. A leader rated highly by superiors and poorly by direct reports is managing upward and leaning on the people below. One rated well by direct reports and poorly by peers is protective of a team and difficult as a colleague. One rated well everywhere except by the board has a board relationship problem rather than a leadership problem. The aggregate score hides all of this. The pattern reveals it.
Where It Misleads
When it is read as a measure of the person. A 360 taken during a layoff, a turnaround, or a failing quarter measures a leader under strain, rated by people under strain. The scores say something about that period. They say less about the leader across time, and almost nothing about why.
When raters are few or positioned. A 360 with three direct reports, one of whom is being managed out, is a referendum, not a measurement. Anonymous comments in small groups are often identifiable, which makes them either muted or weaponized. I would rather have five honest conversations than twenty anonymous forms.
When it is used to decide. Some organizations treat the 360 as evidence in a case about a leader's future. The moment raters know that, the instrument stops measuring effect and starts measuring politics. A 360 should inform the leader and the coach. It should not be a performance appraisal in disguise, and a leader should know which it is before agreeing to it. I have written about the three-way contract in sponsored coaching, where this question belongs.
When the problem is internal. The 360 cannot see what is happening inside the leader. A chief executive rated low on decisiveness and energy may be unmotivated, or badly matched to the role, or in the early stage of a depressive episode. The instrument cannot distinguish these. A clinician can, which is one reason a clinical lens matters at the assessment stage. I have seen 360 reports used to plan a year of coaching on "executive presence" for a leader whose real need was treatment.
How I Use It
I prefer interviews to surveys, and few to many. In the first weeks of an engagement, with the leader's agreement, I speak with a handful of people: the chair or the leader's superior, two or three direct reports, a peer, occasionally a spouse. The conversations are structured around the same few questions and last about thirty minutes. What is this person like to work with? What do they do that helps? What do they do that gets in the way? What would you want them to know that you have not said?
The answers are synthesized, not quoted, and the themes go to the leader as a narrative rather than a chart. That format preserves the why behind the ratings, which is the part a survey loses, and it protects the raters in small groups where anonymity is a fiction.
Then we hold the results against the leader's own account. Where they match, we note it and move on. Where they diverge, we have found the territory. The engagement's goals are written from that divergence, in observable terms, and the same people can be asked the same questions at the close. That is how I prefer to evaluate whether an engagement worked: not by the leader's report, but by whether the people around them noticed.
Receiving a 360 Well
For a leader about to receive one, three suggestions.
Read for pattern, not for score. The number on any single item is noise. The shape across groups and the gap from your self-rating are signal.
Resist identifying the raters. You will want to, you will probably be able to, and it will convert useful data into a grievance. The point is not who said it. The point is that someone experiences you that way.
Separate effect from intention, deliberately. Almost every leader's first response to a critical rating is "but that is not what I meant." The rating is not about what you meant. It is about what happened. Holding both, that you meant well and that it landed badly, is the posture from which change becomes possible.
If you have a 360 report you are not sure how to read, or are deciding whether to commission one, that is a reasonable thing to bring to a free consultation. Reading one well is a skill, and it is most of what makes the instrument worth its considerable cost in other people's time.