During the interview, when applying for a new job, joining a workshop, or even while scrolling through social media, “What’s your MBTI type?” can become an unavoidable question. As people respond with acronyms like INTP (Introversion-Intuition-Thinking-Perceiving), ENFP (Extraversion-Intuition-Feeling-Perceiving), and ISFJ (Introversion-Sensing-Feeling-Judging), many of them treat these concepts as entire personality explanations in themselves.
Meanwhile, at the forefront of psychological research stands the five-factor model, with an abundance of research, particularly on factors such as Extraversion, Conscientiousness, and Neuroticism. The rising popularity of psychological assessments raises one critical question: which model of personality receives stronger empirical support?
Although both the Myers-Briggs Type Indicator (MBTI) and Five Factor Model are models aiming at explaining one’s personality, these models are widely different in terms of theoretical development, empirical support, and practical applicability. This article compares these two influential models and the reasons why the Big Five Model has become the preferred model in contemporary psychological research (Costa & McCrae, 1992; John & Srivastava, 1999).
Read More: The DISC Test: A Simple Guide to the Four Personality Types
Understanding Personality Assessment
Personality psychology is defined as the study of understanding the relatively stable patterns of thinking, feeling, and behaving that distinguish individuals from one another (Pervin, Cervone,& John, 2005). Well-validated assessments of personality allow psychologists to predict a variety of life outcomes, including academic achievement, job performance, mental health, relationships and overall well-being. There are two dominant models used today in personality assessment:
- Myers-Briggs Type Indicator (MBTI): This tool has been widely used in executive development trainings, career counselling, and personal growth seminars.
- Big Five Personality Model: This model has been the most extensively researched personality framework in academic psychology.
Both models try to explain personality in an entirely different fashion. MBTI assigns each individual a personality “type”, while the Big Five model focuses on describing personality as continuous dimensions that vary across individuals (McCrae & Costa, 2008).
Read More: The Five-Factor Model of Personality: All You Need To Know
The Myers-Briggs Type Indicator (MBTI)
Origins and Theoretical Basis
The MBTI was conceptualised by Katharine Cook Briggs and Isabel Briggs Myers, a mother-daughter duo, during the mid-20th century. Their concept was based on the theory of psychological types developed by Carl Jung, the Swiss psychiatrist, in Psychological Types (Jung, 1921/1971). Jung’s theory was not based on large-scale scientific study but more or less through clinical observations of humans. Myers and Briggs turned Jung’s observations into a personality questionnaire designed to help people understand their individual personality differences and preferences. The MBTI categorises people based on 4 pairs of opposite preferences:
- Extraversion (E) vs. Introversion (I)
- Sensing (S) vs. Intuition (N)
- Thinking (T) vs. Feeling (F)
- Judging (J) vs. Perceiving (P)
An individual is classified with one preference from each pair. Combining these four dimensions produces 16 personality types such as INTJ, ENFP or ISFP and more (Myers et al., 1998).
Read More: Personality Disorder: Types, Cause and Symptoms
MBTI’s Popularity
As stated before, the MBTI has been tremendously successful largely because of its simple yet descriptive personality categorisations that people found meaningful. Some obvious reasons for its popularity are:
- It is easy to grasp the basic framework.
- It fosters an environment of self-analysis and reflection.
- It serves as a useful framework to discuss ways to improve communication between people with different styles.
- It is quite popular in executive coaching and team building settings and has created its own language for describing personality differences among people.
Most organisations use MBTI training sessions for their employees, and most participants found the process of discovering their personality type fun. One must remember that there are strict guidelines to follow regarding the use of the MBTI, and the instrument should not be used as a basis for making hiring decisions or employee selection (Myers et al., 1998).
Limitations of MBTI in Psychological Research
However, despite widespread usage, the MBTI has raised numerous concerns among psychologists over the validity and reliability of its scientific foundations.
1. Poor Test-Retest Reliability
According to numerous studies, approximately half or one-third of the participants are assigned to different personality types when they take the test again, even with a short space of weeks and months (Pittenger, 2005). With an unreliable test-retest reliability, the personality assignments of the MBTI cannot be taken as consistent indications.
2. The Categorical Issue
The MBTI forces each person into either one category or the other on each dimension; for instance, someone has to be either an introverted or an extraverted person, and cannot exist somewhere on the continuous spectrum between the two. However, the natural distribution of various personality traits in humans is not fixed categories but continuous dimensions (McCrae & Costa, 1989).
3. Lack of Predictive Validity
Predictive validity is the extent to which a test can predict outcomes in real life, and unfortunately, the MBTI has shown weak indications of its predictive validity among many life outcomes. This includes work performance, leadership effectiveness, academic achievement, mental health and quality of relationships; hence, the use of the MBTI is advised against in important life decisions (Pittenger, 2005).
The Big Five Personality Model
How the Big Five Was Developed
Unlike the MBTI, the Big Five model was developed empirically through more than fifty years of research, which involved analysing thousands of personality-describing words across different languages using statistical techniques known as factor analysis. These terms resulted in the discovery of five general dimensions of personality that can explain a large portion of human personality variation (Goldberg, 1993). These five dimensions are:
- Openness to Experience: refers to one’s tendencies towards imagination, creativity and abstract thoughts.
- Conscientiousness: describes how responsible, organised, and self-disciplined a person is.
- Extraversion: describes how outgoing, sociable, and positive someone is.
- Agreeableness: refers to how good-natured, altruistic and trustworthy a person is.
- Neuroticism: describes how emotionally unstable and vulnerable a person is towards various stresses in life
Researchers commonly abbreviate this model as OCEAN (John & Srivastava, 1999).
A Continuous Spectrum of Personality
In contrast to the MBTI, the Big Five does not classify people into distinct categories. Instead, it views personality as existing on a continuum. An example: An individual may score moderately on Extraversion, another person may have a moderately low score, and another one right in the mid-point of that domain. The continuous dimensional nature of personality traits in the Big Five model appears to be more valid than the dimensional categorisations suggested by the MBTI, as human personality appears to exist on a spectrum rather than in fixed categories (McCrae & Costa, 2008).
Why the Big Five has Stronger Scientific Credibility
Reliability of The Big Five Model
Research has consistently shown that the Big Five personality traits are highly reliable. The traits were reliable among different samples, across various time points and among different cultures. Researchers can largely attribute this to the internal consistency of the scales used to assess the five dimensions. Long-term studies have proven that personality traits in adults remain largely stable, although minimal adjustments occur with age (Costa & McCrae, 1992). The Big Five Model shows far more usefulness and an informative nature when reliability estimates for the personality dimensions are high.
Validity of The Big Five Model
A personality assessment tool is valid when it accurately measures what it intends to measure and effectively predicts future outcomes. The Big Five model has shown significant evidence regarding predicting various important life outcomes, including, but not limited to, academic achievements, job performance, academic success, health and well-being and relationships.
For instance, research has repeatedly linked conscientiousness to positive outcomes, including better academic grades, job attainment and performance, and healthier behaviours in both the general population and specific organisations (Roberts et al., 2007). Research has shown that neuroticism, in particular, predicts a higher likelihood of developing depression and anxiety-related disorders (John & Srivastava, 1999). Researchers have repeatedly found that the Big Five predicts important outcomes across diverse populations and cultures, making it a valuable and credible personality assessment model.
Common Criticism of the Big Five Model
In spite of being a well-evidenced model, it doesn’t cover all the bases. The main criticisms against the Big Five Model are as follows:
- It provides evidence about personality more effectively rather than explaining why personality develops.
- It doesn’t consider unconscious processes, personal narratives or cultural influences.
- It is further stated that there are certain additional traits or dimensions that are needed to explain personality in all cultures across different societies (McAdams, 1995).
These limitations show that no single personality model can fully describe a person’s personality or human behaviour.
Comparing MBTI and Big Five
The comparison demonstrates that while MBTI is attractive because of its simplicity, the Big Five model actually provides a more scientifically robust understanding of personality.
| Feature | Myers-Briggs (MBTI) | Big Five |
| Theoretical basis | Jung’s psychological types | Empirical factor-analytic research |
| Personality structure | 16 personality categories | Five continuous personality traits |
| Reliability | Moderate; type changes common | High test-retest reliability |
| Scientific validity | Limited empirical support | Strong empirical evidence |
| Predictive ability | Limited | Predicts many life outcomes |
| Research use | Less common | Widely used in psychology |
| Workplace use | Team-building, coaching | Recruitment, research, leadership Studies, organisational psychology |
Practical Applications for Both Models
Where MBTI is useful
While a number of criticisms have been made of the MBTI by scientific research, it can be very useful in the following contexts.
- Personal reflection.
- Ice-breaker for group discussion.
- Team communications activities.
- Leadership coaching.
- Career exploration discussions.
The intention here would be to promote discussion and make judgments about one’s ability rather than trying to categorise the capabilities that one has.
Where the Big Five Model shines
Because the Big Five has strong psychological evidence, psychologists widely use it in the following contexts:
- Personality research
- Clinical psychology
- Organizational psychology
- Educational psychology
- Health psychology
- Job assessment
- Developmental psychology
- Longitudinal studies
Its predictive accuracy helps to understand normal personality variation and psychological behaviour over a lifetime (Roberts et al., 2007).
Reason Behind Generally Preferring the Big Five Model
There are numerous reasons why psychologists use the Big Five Model over other personality models. It possesses numerous valuable qualities such as:
- Being heavily evidence-based by decades of research,
- Having high re-test reliability,
- Predicting important life outcomes,
- Being replicated in numerous different cultures and languages,
- Researchers find this model beneficial in research as its measurement is continuous rather than creating boxes within which people are forced to fit,
- Can be incorporated into other fields such as neuroscience, behavioural genetics and clinical research.
On the other hand, MBTI is popular as a result of the intuitive and engaging labels for personalities rather than its psychometric evidence (Pittenger, 2005).
Read More: What Is Hybrid Learning? Why Schools Are Adopting This Flexible Education Model
Conclusion
Both the MBTI and the Big Five have influenced the way we look at personality, but the two are useful for different reasons. One of the main strengths of the MBTI is how it provides an easy-access framework that promotes self-reflection and conversation, which are extremely useful in educational and coaching contexts. Its drawbacks include its type system; re-test reliability is often unreliable, and it does not possess predictive validity, making it less useful in formal research settings and real-world decision-making processes.
Researchers largely developed the Big Five through empirical research, and studies have demonstrated its reliability and validity across education, work, health, and relationships. While no personality theory can fully predict an individual’s behaviour, psychologists currently consider the Big Five the most appropriate evidence-based option. As personality science continues to evolve, the goal is not simply to place people into boxes but to understand the rich continuum of traits that shape how individuals think, feel, and interact with the world. After all, understanding personality isn’t about finding the perfect label – it’s about discovering the patterns that help people understand themselves and others more thoughtfully.
References +
- Jung, C. G. (1971). Psychological types (H. G. Baynes, Trans.). Princeton University Press. (Original work published 1921)
- McCrae, R. R., & Costa, P. T., Jr. (1989). Reinterpreting the Myers-Briggs Type Indicator from the perspective of the Five-Factor Model of personality. Journal of Personality, 57(1), 17–40. https://doi.org/10.1111/j.1467-6494.1989.tb00759.x
- Costa, P. T., Jr., & McCrae, R. R. (1992). Revised NEO Personality Inventory (NEO PI R) and NEO Five-Factor Inventory (NEO-FFI): Professional manual. Psychological Assessment Resources.
- Goldberg, L. R. (1993). The structure of phenotypic personality traits. American Psychologist, 48(1), 26–34. https://doi.org/10.1037/0003-066X.48.1.26
- McAdams, D. P. (1995). What do we know when we know a person? Journal of Personality, 63(3), 365–396. https://doi.org/10.1111/j.1467-6494.1995.tb00500.x
- Myers, I. B., McCaulley, M. H., Quenk, N. L., & Hammer, A. L. (1998). MBTI manual: A guide to the development and use of the Myers-Briggs Type Indicator (3rd ed.). Consulting Psychologists Press.
- John, O. P., & Srivastava, S. (1999). The Big Five trait taxonomy: History, measurement, and theoretical perspectives. In L. A. Pervin & O. P. John (Eds.), Handbook of personality: Theory and research (2nd ed., pp. 102–138). Guilford Press.
- Pervin, L. A., Cervone, D., & John, O. P. (2005). Personality: Theory and research (9th ed.). John Wiley & Sons.
- Pittenger, D. J. (2005). Cautionary comments regarding the Myers-Briggs Type Indicator. Consulting Psychology Journal: Practice and Research, 57(3), 210–221. https://doi.org/10.1037/1065-9293.57.3.210
- Roberts, B. W., Kuncel, N. R., Shiner, R. L., Caspi, A., & Goldberg, L. R. (2007). The power of personality: The comparative validity of personality traits, socioeconomic status, and cognitive ability for predicting important life outcomes. Perspectives on Psychological Science, 2(4), 313–345. https://doi.org/10.1111/j.1745-6916.2007.00047.x
- McCrae, R. R., & Costa, P. T., Jr. (2008). The Five-Factor Theory of personality. In O. P. John, R. W. Robins, & L. A. Pervin (Eds.), Handbook of personality: Theory and research (3rd ed., pp. 159–181). Guilford Press.
