Big Five vs Myers-Briggs at a glance
The Big Five and the Myers-Briggs Type Indicator (MBTI) are the two personality frameworks people most often compare. Both describe how people differ, but they are built on different assumptions. The Big Five measures five traits on continuous scales. The MBTI sorts people into one of 16 types.
| Big Five (OCEAN) | Myers-Briggs (MBTI) | |
|---|---|---|
| Structure | 5 continuous dimensions | 4 either/or preferences, giving 16 types |
| Dimensions | Openness, Conscientiousness, Extraversion, Agreeableness, Neuroticism | E/I, S/N, T/F, J/P |
| Result format | Scores or percentiles for each trait | A four-letter type, e.g. INTP |
| Origin | Statistical analysis of personality descriptions | Carl Jung’s theory of psychological types |
| Emotional stability covered? | Yes (Neuroticism) | No |
| Standing in academic psychology | The dominant research model | Widely criticized |
| Where it’s most used | Research, some workplace assessment | Coaching, team-building, self-reflection |
The rest of this article explains what sits behind each row, then covers 16Personalities and other alternatives.
How each model was built
The MBTI was developed by Katharine Cook Briggs and her daughter Isabel Briggs Myers, starting in the 1940s. Neither had formal training in psychology. They set out to make Carl Jung’s ideas about psychological types practical and accessible. The theory came first, and the questionnaire was designed to sort people according to it.
The Big Five came about almost the opposite way. Researchers began from the lexical hypothesis: the idea that important personality differences become words in everyday language. They collected thousands of trait-describing words, had people rate themselves and others, and used factor analysis to see which descriptions clustered together. Over several decades, independent teams kept finding roughly the same five broad clusters. The model was discovered in data more than derived from a theory.
Types vs scores: the core structural difference
The MBTI asks whether you prefer, say, Introversion or Extraversion, and gives you one letter. The Big Five asks how much Extraversion you have and gives you a score.
That difference matters most for people in the middle. Most people score near the center on most dimensions. On a type test, someone just past the midpoint gets the same letter as someone at the extreme, and a small shift in answers can flip the letter. On a trait test, a middle score is reported as exactly that: average.
This is the type vs trait distinction in miniature. For a fuller explanation of the two approaches and their history, see our guide to type vs trait theory.
How the MBTI scales line up with the Big Five
The two systems overlap more than their branding suggests. Research going back to the late 1980s, including work by Robert McCrae and Paul Costa, found that four of the MBTI scales correlate with four of the Big Five traits:
| MBTI preference | Closest Big Five trait | Rough relationship |
|---|---|---|
| Extraversion vs Introversion (E/I) | Extraversion | E aligns with higher Extraversion |
| Intuition vs Sensing (N/S) | Openness to experience | N aligns with higher Openness |
| Feeling vs Thinking (F/T) | Agreeableness | F aligns with higher Agreeableness |
| Perceiving vs Judging (P/J) | Conscientiousness | J aligns with higher Conscientiousness |
The overlaps aren’t perfect, and the size of the correlations varies by scale and study. But they suggest that, to a large extent, the MBTI measures familiar traits and then cuts them into categories.
The missing factor: Neuroticism
The Big Five factor that doesn’t line up with any MBTI scale is Neuroticism: the tendency to experience anxiety, sadness, irritability and stress. The MBTI was built around preferences that are each framed as equally positive, and it has no dimension for emotional stability.
That omission is significant. Neuroticism is one of the Big Five traits most often linked in research to well-being, relationship satisfaction and mental health. A model that leaves it out can describe how you like to work or communicate, but it misses a major part of how people differ.
Which is more scientifically supported?
Most personality psychologists consider the Big Five the stronger model. In broad terms:
- Reliability: Big Five scores tend to be stable when people retake the test. The MBTI’s underlying scale scores also show reasonable consistency in many studies. But because people near the midpoint can be assigned a different letter on retest, a noticeable share of people get a different four-letter type when they take it again.
- Validity: Big Five traits have been linked in a large body of research to outcomes such as job performance, health behaviors and relationships. Evidence that MBTI types predict outcomes is much weaker.
- Structure: Research generally hasn’t found that MBTI preferences split people into two distinct groups, which is what a true type would imply.
Even the MBTI’s publisher says the assessment shouldn’t be used for hiring or selection decisions. We go through the research in detail in Is the MBTI scientifically valid?
None of this means the MBTI is worthless. Many people find its descriptions helpful for reflecting on their preferences and for discussing differences in a team. The fairest summary is that it’s a framework for conversation more than a precise measurement tool.
Where 16Personalities fits in
Many people searching for “MBTI” have actually taken the free test at 16Personalities. It’s worth being clear about what that site is:
- It isn’t the official MBTI. The official MBTI is published by The Myers-Briggs Company and is normally taken through a certified practitioner or the publisher’s own site, for a fee.
- It borrows the four letters but is built differently. 16Personalities describes its approach as combining MBTI-style letters with trait-based measurement, and it uses its own type names, such as “Architect” or “Advocate.”
- It adds a fifth letter. The -A (Assertive) or -T (Turbulent) suffix reflects how confident or stress-prone you are. That closely resembles the Big Five’s Neuroticism dimension, the one the MBTI lacks.
So 16Personalities sits somewhere between the two systems: type labels on the surface, with a dimension borrowed from trait psychology.
Alternatives to 16Personalities worth trying
If you want something beyond 16Personalities, the best choice depends on your goal:
- For a research-based Big Five profile: the IPIP-NEO is a free, public-domain questionnaire modeled on the professional NEO inventories. It reports scores on the five traits plus narrower facets. Several other sites, including Truity and Open Psychometrics, also offer free Big Five tests.
- For a six-factor view: the HEXACO inventory adds an Honesty-Humility dimension to traits similar to the Big Five. A free version is available from its authors’ website.
- To stay with Jungian types: the official MBTI (paid), the Keirsey Temperament Sorter, and free options such as the Open Extended Jungian Type Scales give type results in a format similar to 16Personalities.
- For a different kind of type system: the Enneagram describes nine types organized around core motivations and fears.
For a broader list, including workplace tools like DISC and CliftonStrengths, see What personality tests are similar to the MBTI?
Which test should you take?
A simple way to decide:
- You want the most accurate, research-backed picture of yourself: take a Big Five or HEXACO test.
- You want a vivid, memorable description to reflect on or discuss with friends: an MBTI-style test or the Enneagram may feel more engaging.
- You want to understand stress and emotional ups and downs: choose a Big Five test, since the MBTI doesn’t measure this.
- You’re making decisions about hiring or someone’s career: don’t rely on type tests. Use properly validated assessments with professional guidance.
Taking one of each is also reasonable. Many people find a Big Five profile explains why their MBTI-style result feels right, or why it seems to change.
Frequently asked questions
What is the best Myers-Briggs personality type test?
The official MBTI from The Myers-Briggs Company is the original instrument, but it costs money. Free tests, such as 16Personalities or the Open Extended Jungian Type Scales, use similar letters but are separate questionnaires and can give different results. Whichever you use, pay attention to how close you are to the midpoint on each letter.
What are the rarest MBTI types?
In samples published by the MBTI’s developers, which are mostly from the US, INFJ is usually reported as the least common type, followed by others such as ENTJ and INTJ. Exact percentages vary by sample, country and test version, so treat any precise figure as approximate. The Big Five has no “rarest type,” because it reports scores rather than categories.
What do psychologists think of the MBTI?
Many academic psychologists are skeptical of it. They point to its either/or categories, the number of people who get a different type on retest, its limited predictive power and its lack of an emotional-stability dimension. Some practitioners still find it useful as a structured way to start conversations about preferences.
Which Big Five factor doesn’t correlate with Myers-Briggs?
Neuroticism. The other four Big Five traits each correspond roughly to one MBTI scale, but nothing in the MBTI measures emotional stability.
Is 16Personalities free?
The core test and a basic type description are free. The site also sells more detailed reports and premium content.
Can your 16Personalities result change over time?
Yes. Results can change, especially if you score close to the middle on one of the scales, because a small difference in answers can flip a letter. Mood, life circumstances and how you interpret questions on a given day can also shift results somewhat.