Cognitive Functions Test: Find Your Leading Jungian Function and Type Pairings
An exploration of eight Jungian function concepts through 32 questions about how you approach ideas and decisions. You get a leading function, a guide to pairings and 16-type codes, and an optional PDF.
Reviewed by Michael Callans, MSW 
Cognitive Functions Test is a free, confidential 32-question self-assessment, original items informed by Jungian type theory. It takes about 6 minutes, runs entirely in your browser, and gives you a plain-language profile of your strongest style plus an optional in-depth report. It is an educational screening, not a diagnosis.
Eight descriptions of thinking, held as a theory
You may recognize several approaches to the same problem. This test gives you a vocabulary to examine those approaches without claiming that eight separate mental systems or fixed function stacks have been established.
Different approaches to information and decisions
The eight labels combine intuition, sensing, thinking, and feeling with an inward or outward orientation: Ni, Ne, Si, Se, Ti, Te, Fi, and Fe. Four original questions describe each. Feeling here concerns evaluation through values; thinking concerns evaluation through reasoning. Neither label measures emotionality or intelligence.
A full endorsement profile
All eight scores are visible, so you can notice similar bars and context-dependent preferences. The main heading is simply the highest endorsement on this questionnaire. We do not force a complete stack, assume that your second-highest score is an auxiliary function, or claim a statistically significant distinction between close results.
A conditional guide to type codes
Every leading interpretation explains its two conventional auxiliary pairings and associated 16-type codes. This is a guide to a later typological convention, not a second calculated result. If your profile does not resemble one of those pairs, you do not need to revise your answers to make the theory fit.
| Feature | Typical free quiz | Psychology.com |
|---|---|---|
| Scientific claim | May describe proven mental wiring | Explicitly identifies function stacks as a theory |
| Item source | May leave proprietary origins unclear | 32 original items, four per function concept |
| Profile display | May force one complete stack | All eight original educational groupings shown |
| Auxiliary interpretation | May equate second place with auxiliary | Conditional pairings explained without forced scoring |
| Type-code mapping | May treat a code as a definitive identity | Sixteen conventional codes offered as optional references |
| Purpose | May imply a cognitive ability assessment | Adult personality reflection, not a memory or reasoning test |
The 8 patterns this test measures
- Ni · Introverted intuition: Drawing several observations toward one possible underlying meaning.
- Ne · Extraverted intuition: Opening up alternatives and noticing possible connections.
- Si · Introverted sensing: Using familiar experience and remembered details as reference points.
- Se · Extraverted sensing: Responding to concrete information available in the present situation.
- Ti · Introverted thinking: Seeking a clear internal explanation of how something works.
- Te · Extraverted thinking: Organizing action around explicit criteria and observable results.
- Fi · Introverted feeling: Checking a choice against personally held values.
- Fe · Extraverted feeling: Considering shared values and the interpersonal meaning of a choice.
If nothing is endorsed, every pattern scores the same, or the leading patterns tie, the result says so instead of naming a single pattern.
The tertiary and inferior functions this test does not score
Classic type-dynamics theory describes a stack of four functions for each type: a dominant function, an auxiliary, a tertiary, and an inferior function, sometimes discussed as a grip or loop when the inferior function shows up under stress. This questionnaire scores only your top function and offers two possible auxiliary pairings. It does not calculate a tertiary or inferior position, since those layers depend on assumptions about function order that go beyond what 32 original items can support.
If you are curious about the fuller stack associated with a code such as INFJ or ESTP, treat any tertiary or inferior description you find elsewhere as a further layer of the same unproven theory, not a separate confirmed result. The inferior function is sometimes used to explain stress reactions, but ordinary stress has many causes, and attributing a difficult period entirely to a theoretical grip can distract from a more direct explanation, such as workload, conflict, or a health change worth discussing with a professional.
How this compares with Big Five personality research
Big Five research and type-dynamics theory ask different questions. The Big Five describes personality along five continuous dimensions such as openness and conscientiousness, based on decades of factor-analytic study, while this questionnaire sorts responses into eight discrete function concepts drawn from Jung’s original theory. A continuous model can show that two people are both moderately introverted without needing them to share a type code, while a function stack looks for a single leading approach and a proposed order behind it.
Comparing the two is not about picking the more accurate one for every purpose. The Big Five has stronger research support behind it, and Jungian type-dynamics remains popular for reflection and conversation despite limited empirical support, as McCrae and Costa’s evaluation of type theory describes. If you want a second, differently grounded perspective on your own patterns, the Big Five Personality Test can be a useful complement to weigh alongside this profile rather than a contradiction of it.
Methodology & sources
The concepts are informed by Jung’s Psychological Types and later type-dynamics conventions. We wrote 32 original statements, four for each of Ni, Ne, Si, Se, Ti, Te, Fi, and Fe, with responses scored from 0 to 4. Each function grouping sums to 0 to 16. The engine displays a rounded percentage of each maximum and selects the highest displayed percentage as the leading function. Ties follow definition order and should be read as ties. These are our educational item groupings, not validated subscales, and percentages are not population ranks. No response earns points for more than one function. The interpretation describes two possible conventional auxiliary pairings; the engine does not calculate an auxiliary score, infer a full stack, or assign a four-letter code.
Function stacks are a theory without strong empirical support, and this questionnaire has not been validated. Jung’s original writing and later 16-type conventions are related but not identical. McCrae and Costa’s evaluation of type preferences also challenged treating personality as sharply separated categories. We use this framework for educational screening and adult self-reflection, not diagnosis, cognitive performance testing, or claims about brain mechanisms. Ni and Ne are not tests of prediction, Si is not a memory score, and Ti is not an intelligence score. A second-highest bar need not be the auxiliary allowed by a type convention. Inconsistent or blended results are an acceptable outcome; keep the descriptions that clarify an actual choice and leave the rest. The 16 Personalities Test is another typological lens, while the Big Five offers a continuous trait framework.
References
- Jung, C. G. (1971). Psychological Types. Collected Works of C. G. Jung, Vol. 6. Princeton University Press. Original German work published 1921. doi.org/10.1515/9781400850860
- Myers & Briggs Foundation. (n.d.). The processes of type dynamics. myersbriggs.org/unique-features-of-myers-briggs/type-dynamics-processes/
- McCrae, R. R., & Costa, P. T. (1989). Reinterpreting the Myers-Briggs Type Indicator from the perspective of the five-factor model of personality. Journal of Personality, 57(1), 17-40. doi.org/10.1111/j.1467-6494.1989.tb00759.x
Cite this source
Psychology.com. (2026, September 15). Cognitive Functions Test. Psychology.com. https://psychology.com/tests/cognitive-functions
Cognitive Functions Test FAQ
What are the eight cognitive functions?
They are concepts used in Jungian personality discussions: introverted and extraverted intuition, sensing, thinking, and feeling. This gives Ni, Ne, Si, Se, Ti, Te, Fi, and Fe. These names describe theoretical approaches to information and evaluation. They do not establish eight separately measured brain systems, and a function score is not a measure of intellectual ability.
Does this find my dominant and auxiliary functions?
The highest bar is the leading result on our questions. Its interpretation offers two conventional auxiliary possibilities and corresponding codes, which you can compare with your other bars and experience. The engine does not compute a stack. Your runner-up might not match either conventional auxiliary, and close scores provide no basis for insisting on one answer.
How does this relate to the 16 personality types?
Later type-dynamics conventions associate each dominant function with two possible codes, depending on the auxiliary. All sixteen pairings appear across the result interpretations. For example, Ni with Te is conventionally associated with INTJ and Ni with Fe with INFJ. Our 16 Personalities Test uses a different scoring approach; disagreement between quizzes is not evidence that you answered incorrectly.
Is this a Socionics test?
No. Socionics is a separate typology tradition with its own concepts and conventions. Shared letter combinations do not make systems interchangeable, and this questionnaire does not produce a Socionics type or relationship compatibility finding. It is also independent of proprietary personality inventories and does not reproduce their items.
Is this about memory loss or cognitive impairment?
No. Here the plural cognitive functions refers to personality theory. If you want to reflect on everyday cognitive lapses, see the separate Cognitive Function Test or Memory Screening. Those are educational resources, too; persistent changes in memory or daily functioning deserve professional assessment.
Is this free, and what happens to my answers?
The on-page result is free and does not require an account. Scoring happens in your browser, and answers are retained in this tab’s session storage to restore a result after checkout. Usage events do not contain answers or scores. Requesting the PDF summary submits your name, email, and summary scores; purchasing an optional report submits summary scores. These optional actions are separate from completing the test.
How does this relate to Jung typology tests?
"Jung typology test" is a common search term for online instruments inspired by Carl Jung’s original theory of psychological types, most often Myers-Briggs-style questionnaires that resolve straight to a 16-type, four-letter code such as INTJ or ESFP. This test measures the same underlying theory from a different angle: instead of preference questions that map directly to a code, it scores your relative use of the eight individual Jungian functions, such as introverted thinking or extraverted intuition, and then shows which 16-type codes tend to pair with your leading function. If you want a direct four-letter result, our 16 Personalities Test at /tests/16-personalities is the more typical Jung typology test format; this one is for readers who want to see the underlying functions themselves.
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