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Personality Assessments: What’s the Difference Between Myers-Briggs and DISC?

Written by The Balanced WorkLife Company September 27, 2017/ Under : Assessments

Let’s say today you were finally done treading water in a job that didn’t really make you happy. You go to a career coach and the first thing they suggest is you take a “personality assessment” so you can better understand what kind of work will appeal to you.  And it’s likely that they’ll recommend one of two choices; DISC or MBTI (Myers-Briggs). Myers Briggs rings a bell, so you might bite on that.  But are you making a mistake?  Is there something DISC offers that could do a better job of solving your career challenge? Both assessments have their strengths and weaknesses, and one isn’t necessarily better than another.  It all comes down to two things:

· What’s the problem you are trying to solve?

· What’s the best tool for solving it?


So, let’s get started. Origins of MBTI and DISC


The origins of these two assessments are strikingly similar.  They both come from shared roots which then branched out and were expanded on by modern day scientists. And just to note, several versions and variations have been created for each of these tools.  So we’ll try to compare them as closely as we can to the science behind them and less on individual versions of each of these systems.


MBTI’s Origins


The foundation of today’s Myers-Briggs assessments come from the research Dr Carl Jung did in the early 20th century.  One of his most notable theories was his work in defining introversion and extroversion as it’s popularly understood today.


Dr. Jung’s research largely intended to explain both the conscious and unconscious forces affecting behavior and to identify the core personality traits that differentiate among people. 


He did this through separating behavior into three “bipolar dimensions“.

1. Extroverted vs Introverted

2. Sensing vs Intuition

3. Thinking vs Feeling


Myers and Briggs added to Jung’s three existing elements a fourth one.

Judging (J) vs Perceiving (P) Myers and Briggs refined the instruments for measuring these behaviors into 93 forced based questions which make up the Myers-Briggs Type Indicator®.


DISC’s Origins


Like MBTI, the science behind DISC also took inspiration from Jung’s work.  His research on extroversion and introversion were the basic fundamentals of explaining human behavior. Dr. Marston expanded on these studies with a desire to explain how normal human emotions lead to behavioral differences among people as well as to changes in a person’s behavior from time to time.  And in addition, to take these behaviors of an individual and understand their implications in interpersonal relationships. Marston similarly to Jung, created a four-dimension system for measuring a person’s behaviors.  His included the following.

1. Dominance

2. Inducement

3. Steadiness

4. Compliance

Since Marston’s work in the 30’s and 40’s several modern-day companies and scientists have updated his methods and findings to fit with the current patterns and observations reflected in today’s work environment.


Bill Bonnstetter, the developer of TTI’s popular DISC assessment is one of the most recognized contributors to this field and it’s his modern-day DISC assessment that I will use as an example.

What is DISC & MBTI


Before we can dive right into looking at the differences between the world’s two most popular personality assessments, it helps if we understand what they are to begin with.

DISC


DISC is often referred to as “the universal language of observable human behavior.”

The reason behind this is that in every culture studied, the DISC model has been found to be valid (Bonnstetter).  Whether you speak English or Swahili, the tools and science behind DISC can be used transparently. Often, when describing DISC, people will start with what DISC is not.  It is not a measurement of emotional intelligence, personal intelligence, motivations, or education and training.  It’s also not a measurement of one’s experience, personal skills, or world view. What DISC does measure is HOW you do what you do. It is a measure of one’s OBSERVABLE behavior. And lastly, it is a neutral language.  There are no good or bad behavior styles in the DISC method.


The meat of today’s DISC is in the four dimensions that categorize behavior.

1. Dominance (How you respond to problems and challenges)

2. Influence (How you influence others to your point of view)

3. Steadiness (How you respond to pace of environment)

4. Compliance (How you respond to rules and procedures set by others)


The level of each of these dimensions determines what DISC style you have.  Your style is often noted by whichever dimension you scored highest in, followed by any other dimensions that were above the energy line as well. For example, if people asked what style I was on DISC, I’d tell them I’m a C.  But because my S and I are also above that energy line in the center, I can mention I’m a C/S or a C/S/I if I liked. Because you can score within a wide range of numbers under each style, there’s a lot of depth to everyone’s score.  A certified professional behavioral analyst could look at your graph and describe you accurately. Lastly, DISC differentiates itself from “personality assessments” further by delving into the interpersonal relationships side of behaviors.  Meaning, those trained in reading these tools can compare two contrasting DISC reports and predict rather accurately where conflict or harmony could arise.  Using this insight, coaches can then help individuals or teams recognize these differences or similarities and turn them into assets.

MBTI (Myers-Briggs Type Indicator)

The MBTI works on illuminating the way you think and deal with information internally.  Picture it as the way you think about the world around you. Jung measured this using the “bipolar dimensions” mentioned earlier, by having two dimensions scored in an either-or format. Differing from DISC’s method of measuring levels of each style, Jung believed, “that while both facets of a bi-polar dimension are present in personality, one is emphasized more than the other.  In fact, an individual may use one consciously and with deliberate intention, while the other influences behavior only unconsciously.” The four dimensions are described as follows. 1.  Extroversion (E) vs Introversion (I): Individuals pay more attention to either the external world of objects (extroversion), or the inner world of ideas and feelings (introversion). 2.  Sensing (S) vs Intuiting (N): Individuals naturally prefer to use one of two functions. Either sensing what the objective facts are (reality) or intuiting relationships and possibilities (imagination). 3.  Thinking (T) vs Feeling (F): Individuals process and evaluate information one of two ways.  Either by using logic and objectivity (thinking) or subjectivity and personal values (feeling). 4.  Judging (J) vs Perceiving (P):  Individuals deal with the outside world two different ways.  Either you prefer structure and firm decisions (judging) or you prefer a world that’s more open, flexible, and adaptable (perceiving).

via myersbriggs.org

After answering 93 of these forces based, either/or questions you are given the initials that correspond to your results. For example, if I had scored more frequently than the counterpart in Extroversion, Intuiting, Thinking, and Judging, my MBTI would be ENTJ. There is a total of 16 types a person can be and they are all fairly well documented if you wanted to learn more about your style.

The Differences


So, what are the biggest differences between DISC and MBTI.  Let’s talk about them below. 1. MBTI has 16 types DISC has 384+ The chart above showed you the 16 possible types an MBTI could define a person as.  This number is straight forward to come to since for each dimension there’s only two possible outcomes. Four dimensions squared for the two possible outcomes, gets you 16 combinations. DISC is a bit more complicated.  Since a person could score anywhere from 0 to 100 for each of the D, I, S, and C styles this leads to over 20,000 combinations when you compare all four dimensions at once.  However, TTI found that 99% of the population tended to fit into 384 combinations (Bonnstetter).

TTI has simplified this further by creating a visual wheel of the 60 most popular combinations and where they line up in the quadrant system.