D: The Dominant. Decides fast and isn't afraid of risk.

The D style describes a fast, results-driven pattern of behavior, powered by the need to stay in control of the situation and see things through.

This article is part of a popular-science series on the DISC model: a behavioral tool designed for the workplace, not a clinical personality test. It’s educational reading, not a substitute for a certified DISC assessment or a professional’s judgment.

What Marston meant by “Dominance”

D is the only DISC letter that still carries almost exactly the meaning it had at its origin. In Emotions of Normal People (1928), psychologist William Moulton Marston described four basic emotional responses: Dominance, Inducement, Submission and Compliance. In the usual reading of his scheme, dominance is the active response to an environment perceived as opposing or resistant: pushing to overcome the obstacle.

Marston didn’t treat it as a flaw. The book’s title already says as much: he wanted to describe the emotions of healthy people, and dominance was, for him, one of them, as normal as the other three. The other letters changed names over time (we cover that in the article on Marston and the lie detector); D stayed D.

The color version in circulation today, with D in red, comes mostly from business self-help books such as Thomas Erikson’s Surrounded by Idiots (2014), which adapts the scheme freely. It’s a handy lens for conversation, not research.

An everyday scene: the renovation that won’t move

Picture a kitchen renovation that has been stalled for three weeks with no explanation. Someone with high D doesn’t wait for the foreman’s next visit: they call that same afternoon, ask for a firm date and lay out two options (“either you come on Monday or we find someone else”). By the time they hang up, the matter has a deadline.

The people who live with them may experience that call as efficient or as abrupt, depending on the day. For the D, the conversation was never about the relationship with the foreman; it was about getting the kitchen working again.

On the DISC diagram, this style sits in the fast, task-focused quadrant. It isn’t the only style capable of leading (all four can), but it’s the one that takes charge on its own when it senses nobody’s at the helm, and the one with the least tolerance for standing still waiting for the perfect moment.

The underlying fear: losing control

In applied DISC literature, what drives this style is the need to stay in control, and its underlying fear is losing that control or having someone take advantage of it. This layer of “fears” isn’t in Marston: later commercial manuals added it to make the model easier to use in training.

That’s the source of a practical idea those manuals keep repeating: offering options works better with a D than giving orders. “Do it this way” isn’t the same as “would you rather do it this way or that way?”, because in the second case they keep the sense of deciding.

Pressure, on the other hand, doesn’t usually weigh on them the way it does on other styles. A tight deadline or a direct argument can even energize them. What throws them off balance is feeling they’ve lost control of the situation.

What it brings, and what gets strained under pressure

When acting from a place of balance, the D style brings:

• Decisiveness and speed to act when it’s needed, without getting stuck.
• A willingness to take calculated risks other styles would avoid.
• A very clear focus on results: it would rather have an imperfect solution than none at all.
• Candor: it says what it thinks, plainly.

Under prolonged stress, that same determination can turn into rigidity and haste. It grows impatient, demanding and unfiltered in its criticism, and people can feel steamrolled along the way. It’s rarely ill intent: in that moment, the task fills its whole field of vision.

What research says about this axis

DISC has little independent, peer-reviewed research behind it. Most reliability data comes from the commercial providers themselves, and there’s no solid evidence that a person’s predominant style predicts job performance. That’s why it’s best read as a language for talking about behavior, not as a measurement.

What does have a long academic track record is the axis D represents. Interpersonal psychology has described social behavior for decades along two dimensions: dominance (asserting yourself, influencing, taking control) and affiliation (warmth, closeness). This is Timothy Leary’s interpersonal circle (1957), which Jerry Wiggins (1979) turned into a measurable model with eight segments. In our reading, DISC’s D closely resembles the “assured-dominant” pole of that circle, and the diagram’s task-people axis recalls the affiliation dimension. It’s an analogy, not a validated equivalence.

One detail of this site’s own DISC 4 Colors test helps when reading the result: its 24 questions are forced-choice, and each answer counts toward a single style. Because the points are shared among the four, a very high D necessarily means lower scores on the others. The result describes which style predominates in your answers, not how much D you have compared with someone else.

At the opposite end: the S style

On the DISC diagram, the D style and the S style sit in opposite quadrants: they share neither pace (fast versus measured) nor focus (task versus people).

When someone scores high on both, which is less common but possible, the contrast is striking: at work they push ahead like a D without looking back, and faced with a personal problem they sit down and listen with all the patience of an S. They’re two ways of being that rarely show up at the same moment.

Where its growth tends to happen

The challenge the DISC model usually attaches to this style isn’t becoming less decisive, but pausing for a moment before deciding. Asking for input, explaining the reasoning behind a decision and remembering that people aren’t just another item on the task list are, according to this approach, what make a D’s leadership earned rather than imposed.

Does this style sound familiar? The DISC 4 Colors test explores it in a few minutes.

Sources

• Erikson, T. (2014). Omgiven av idioter. Hoi Förlag.
• Leary, T. (1957). Interpersonal Diagnosis of Personality. Ronald Press.
• Marston, W. M. (1928). Emotions of Normal People. Kegan Paul, Trench, Trubner & Co.
• Wiggins, J. S. (1979). A psychological taxonomy of trait-descriptive terms: The interpersonal domain. Journal of Personality and Social Psychology, 37(3), 395-412. doi:10.1037/0022-3514.37.3.395