Jung Typology Test
Read each situation and choose the answer that fits what you would do. There are no right or wrong answers, and the test takes about 7 minutes. At the end you see four scales and your type, named in Jung’s terms, with its four-letter code.
ISTJ
ISTJ remembers who agreed to what, and when.
This type rereads the contract before the kickoff and spots that clause nine contradicts clause four. Plans arrive with dates attached, and when a schedule changes, the first question is why. The checklists get ticked and the filing stays in order.
Once the facts are in, this type decides and moves on. Reopening the question without new information feels like wasted motion. A promise counts for a lot: people of this type keep their own to the letter and expect the same back.
Friendships are few and loyal, with very little small talk. In a review, ISTJ names a flaw in a draft in one flat sentence, and the writer may go quiet for the rest of the afternoon.
Jung's vocabulary has a matching phrase, introverted thinking type, and the CoreTypes typology calls ISTJ Sentinel, with the three-letter code LSI.
It helps ISTJ to add one sentence about what already works whenever a flaw is pointed out.
ISFJ
ISFJ remembers the small things that matter to other people.
This type keeps the shared calendar current and sends the reminder before anyone asks. Allergies and the names of coworkers' children stay in memory, and procedure matters because someone downstream depends on it. In Jung's vocabulary the type is introverted feeling, and CoreTypes names it Custodian, three-letter code ESI.
A new hire finds a welcome note and a map of the building on the first morning. When the office changes a routine, ISFJ asks what happens to the old way and passes the answer along.
Saying no is hard for people of this type, so the workload grows one small favor at a time, and the refusal that was needed finally shows up as irritation. ISFJ smooths over a disagreement with a coworker for weeks, and then it comes out as a sigh. Gratitude is rarely asked for, and the type notices when it is missing.
ISFJ benefits from practicing on small requests: one polite refusal a week, in a single sentence.
INFJ
INFJ often senses where a conversation is heading before anyone says so.
This type listens for a long stretch, then asks the question that shifts the discussion. INFJ plans projects around a picture of where things should stand in two years, and details that don't serve the picture lose their appeal fast. The type files small inconsistencies in what people say away for later.
With friends, the circle stays small and gets full attention. A crowded evening ends early, and a one-on-one talk can run for hours. One short text is enough to read a friend's bad day.
Once a conclusion forms, it feels settled, and the people affected sometimes hear the decision without ever seeing the reasoning. The decision took INFJ one quiet evening, and the rest of the group is still catching up. The Jungian phrase for the type is introverted feeling, and CoreTypes lists it as Sage, three-letter code EII.
Saying the reasoning out loud to one person before announcing a decision works well for INFJ, and so does asking what that person sees.
INTJ
INTJ works backward from a distant goal to the first step.
This type draws a long-range plan with milestones before the team has even met. A proposal gets read for the assumption underneath it, and evidence changes INTJ's mind quickly. Once the plan is chosen, it is the plan. Deadlines come with a buffer, and a fallback sits in a folder.
Small talk takes effort, and thinking happens alone, on a long walk or at a whiteboard. When people keep questioning a settled direction, impatience shows, and the silence afterward reads as disapproval. Praise for a plan gets a polite nod and a request for the weak points.
Compliments from INTJ are few and specific: they name the exact piece of work. Grandmaster is the CoreTypes name for the type, with LII as its three-letter code, and the Jungian phrase is introverted thinking.
INTJ does well to show a half-finished plan to one trusted person and ask what is missing.
ISTP
ISTP learns how a thing works by taking it apart.
A stuck valve or a failing server sends this type straight to the object, tools in hand, manual unread. Explanations stay short, and a meeting that could have been a message gets a visible sigh. Tools live where ISTP can find them, and a borrowed wrench is remembered. In a real emergency the type turns calm, even cheerful.
Feedback comes blunt and brief, and opinions on gear come with a reason. Plans stay open while new facts keep coming, so one may change twice in an afternoon. ISTP sees nothing odd in that, and the change reaches others by word of mouth, if at all. Long-term commitments come late and stay once made.
Introverted sensing is the matching Jungian phrase, and CoreTypes, which has its own names for the sixteen types, calls this one Craftsman, three-letter code SLI.
A two-line note on the current state of the plan each evening works well for ISTP.
ISFP
ISFP notices the mood of a room before taking a seat.
This type does careful hands-on work at an unhurried pace and prefers tasks with a result that can be seen and touched. Craft matters here: the stitching on a seam or the layout of a page gets care that nobody checks. A gift from ISFP is chosen for the person, down to the wrapping.
Opinions stay private, though they run deep, and a loud argument sends ISFP quietly out of the room. A kind gesture sticks for years, and so does a dismissal.
Plans stay loose. A free Saturday gets decided on Saturday, usually by the weather and the company, and pressure to commit early brings a vague yes that can turn into a quiet no.
Jung's vocabulary has introverted sensing for this type, and CoreTypes calls it Harmonist, three-letter code SEI.
A good moment for ISFP to name a preference is the start of a plan, while changing it costs nobody anything.
INFP
INFP carries a private sense of what matters and acts on it.
Open-ended work suits this type: drafting a story, designing a page, anything where the meaning of the project can be explored. INFP asks what a project is for before asking when it is due. Routine paperwork piles up in a corner of the desk, and a deadline that someone else set feels like an intrusion until it gets close.
The type is gentle with people, slow to open up and fierce when a friend gets treated unfairly. Values stay private until tested, and then INFP defends them. Long, careful letters to friends are part of the picture.
Decisions stay open for a long time because each option still looks like it holds a possibility, so a half-finished letter or a half-chosen plan can sit in a drawer for months. The CoreTypes typology places this type under the Jungian phrase introverted intuitive as Flamekeeper, three-letter code IEI.
A date pinned to each open decision, written on the fridge, suits INFP.
INTP
INTP follows a question until the answer fits together.
This type examines a coworker's claim for hidden assumptions and can't let an explanation with a gap in it pass, even in casual conversation. Hours disappear into a side problem nobody else asked about, and now and then the side problem turns out to matter.
In small groups INTP is easygoing, and absent-minded about plans and replies. The work gets finished in the type's head long before it goes on paper, and the writing-down is what waits. A conclusion stays open to revision as long as a better argument might arrive. Presentations get prepared at length and delivered with an apology.
Seer is the CoreTypes name for this type, with ILI as its three-letter code, and the Jungian phrase is introverted intuitive type. INTP spends hobby hours on puzzles and obscure reference books.
A good rule for INTP is to set a time limit on the research and send a first draft when it runs out.
ESTP
ESTP acts on what is happening right now.
This type feels at ease on a busy floor or in a negotiation where things change by the minute. A problem gets tested on the spot, and the fix often shows up while others are still drafting the agenda. Rules count as starting points to adjust to the room. ESTP closes the deal at the table and sends the email later.
People of this type are direct and quick to read a mood. Long-term plans bore them, and a promise made on a good day can slip by the next week. A lively evening wins out over a plan for year five. A close deadline sharpens the focus, and friends call ESTP when something needs doing on short notice.
In Jung's vocabulary the matching phrase is extraverted sensing, and CoreTypes names the type Warlord, three-letter code SLE.
Booking the follow-up before leaving the room works well for ESTP, while the energy is still there.
ESFP
ESFP turns a quiet room into a gathering.
CoreTypes calls this type Duke, three-letter code SEE, and the Jungian phrase that fits is extraverted sensing type.
ESFP greets visitors by name and remembers what they drank last time. Hands-on jobs with people in them suit this type, and a long report alone at a desk drags. When a tense room needs loosening, ESFP finds the joke. Colleagues bring problems because the conversation lifts the mood.
Life runs in the present: the dinner on Friday is vivid, next quarter's budget is a blur. Plans start with enthusiasm and stay open until the day itself, and a better offer can redirect the whole evening. Money and time slip away in good company. A free evening rarely stays empty for long, and this type is easy company and hard to leave out of a plan.
A useful habit for ESFP is to write down what a purchase or a promise costs before saying yes, even when the purchase looks small.
ENFP
ENFP sees a possibility in almost every person and every plan.
This type links ideas from three different projects and gets the room excited about the link. Starting comes easy, finishing is where the energy thins out, and a drawer somewhere holds half a dozen promising beginnings. Brainstorms with ENFP run past the scheduled hour.
ENFP takes real interest in people's stories and remembers them, and a new acquaintance can feel like an old friend within the hour. That wide interest also spreads attention thin: a promise to call back or a dull deadline slips while a fresh idea moves in.
Decisions stay flexible until the last practical moment, and the pace of new enthusiasms can leave steadier friends unsure what is still on. Among Jung's types the matching one is extraverted intuitive, and CoreTypes names this type Harbinger, three-letter code IEE.
A simple rule that suits ENFP is one open project a month, finished before the next begins.
ENTP
ENTP tests an idea by arguing against it.
This type plays the opposing side on purpose and finds the hole in a plan before lunch. Fresh problems draw ENTP in, and a solved one loses its pull, so routine maintenance ends up with somebody else. A pitch from ENTP often comes with a list of objections attached.
Debate feels like play, and the person on the other side sometimes hears an attack. A decision counts as provisional until something better turns up, which keeps options open and leaves the team unsure what was agreed.
The type does well in the first weeks of a start-up and strains in the third month of a long project, when some commitments reach the deadline unfinished. The CoreTypes name Catalyst and its three-letter code ILE sit beside the Jungian phrase extraverted intuitive.
A habit that suits ENTP is saying at the start of a discussion whether it is a real disagreement or an exercise.
ESTJ
ESTJ organizes people and procedures until things run on time.
This type takes charge of the schedule or the committee without being asked and expects decisions to be written down and followed. One clear standard applies to everyone, including the person who set it, and the calendar on the fridge at home is as current as the one at work.
Extraverted thinking is the Jungian phrase for ESTJ, and CoreTypes calls the type Overseer, three-letter code LSE.
ESTJ talks directly and decides fast, and the quiet person in the room often leaves a discussion with the decision already made. A change of method gets accepted once the reason holds up, and a session with no agenda is an irritation. Once a plan is settled, the type moves to the next item on the list. Short, specific thanks go to anyone who delivers on time.
It pays for ESTJ to ask each person for a view before announcing a plan, even when the plan is already clear.
ESFJ
ESFJ makes sure everyone in the room has been included.
This type organizes the farewell card and remembers whose turn it is to bring cake. ESFJ notices a newcomer eating alone and names small frictions on the team early, so things run smoothly when the type is around. The type also plans a dinner for twelve down to who sits next to whom and answers group chats the same day.
Disapproval from someone close hurts and lingers, and the type puts off a decision that would disappoint a friend. People of this type read the mood of a group closely, sometimes at the expense of their own wishes. Even mild criticism lands personally, and a family vacation gets a date months ahead.
CoreTypes calls this type Beacon, three-letter code ESE, and the Jungian phrase for it is extraverted feeling.
Stating one personal preference at the start of each group decision is good practice for ESFJ.
ENFJ
ENFJ sees what a person could become and says so.
As a manager or a teacher, this type draws people into a shared project and gives specific encouragement. ENFJ prepares each session with an eye on who might feel left out, and asks the quiet member a direct question. Feedback names what has changed since last time, and a team member with a good idea gets credit in front of the group.
Plans and deadlines are kept, and decisions come quickly once a direction feels right. Energy spent on other people's growth can crowd out the type's own needs, and criticism from someone the type has invested in lands hard.
ENFJ talks a conflict on the team through the same week and takes a committee role early. The Jungian phrase for the type is extraverted feeling, and in CoreTypes it is Herald, three-letter code EIE.
ENFJ does well to block one hour a week that belongs to no one else and put it on the schedule.
ENTJ
ENTJ sets a goal and starts counting the days.
Jung's vocabulary calls this type extraverted thinking, and in CoreTypes it is the Executor, three-letter code LIE.
In a group, ENTJ steps into the gap where nobody is leading and sorts out who does what. Inefficiency draws a blunt remark, and the type adopts a better method without sentiment about the old one. Decisions come with a date attached, and the plan works backward from the deadline to this week.
Ambitions run long, and conflict doesn't bother ENTJ when a decision needs defending. At that pace an idea from a quieter person gets passed over in the rush toward a plan, and the feelings in the room register late, often after the session ends. The type writes long-range targets down and revisits them every quarter.
A pause after proposing a plan, long enough for the first objection to finish, works well for ENTJ, and quieter people get room to speak.
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About the test
Methodology
The test follows the approach Carl Jung set out with his attitude types and functions. Four either/or pairs are scored: extraversion or introversion (energy), sensing or intuition (perception), thinking or feeling (decision) and rational or irrational (closure, settling a question or keeping it open). Each pair becomes a scale of its own.
The 32 situations, eight per pair, are mixed so that no pair appears as a block. Each has four answers, two leaning each way, and a firm lean earns 3 points while a mild one earns 1. Every pair is decided on its own, and the side with more points wins; a tie goes to I, S, T or P, the side that claims less. The four winning letters, in the order energy, perception, decision, closure, form the code.
The type name comes from Jung's vocabulary: the energy letter gives the attitude, and the leading function is thinking or feeling for a J result and sensing or intuition for a P result. The result screen shows the four scales with the winning side and its percentage. Together the scales make up a field of possible results, and each of the sixteen types is one area of that field. Everyone carries both sides of every pair, and a result names the side that predominates. The test rests on what a person reports about themselves.
The APA Dictionary of Psychology has entries on type theory and on personality type.
Author: Lex Tarrel, Creator of the CoreTypes system
Sources
- Jung, C. G. (1921/1971). Psychological Types (H. G. Baynes, Trans., rev. R. F. C. Hull). Princeton University Press / Collected Works, Vol. 6.
- 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. doi:10.1111/j.1467-6494.1989.tb00759.x
- Carroll, R. T. Myers-Briggs Type Indicator (MBTI). The Skeptic's Dictionary.
Frequently asked questions
Did Carl Jung create this test?
Jung described the attitudes (extraversion and introversion) and the four functions (thinking, feeling, sensing and intuition) in his 1921 book Psychological Types. The questionnaire form came later: in the 1940s Katharine Briggs and Isabel Myers built on his vocabulary and created the questionnaire, the sixteen-type grid and the four-letter notation. All four pairs rest on Jung's concepts. This test is a questionnaire written on that vocabulary, with situations and scoring of its own.
Is this test the same as the official MBTI?
No. The MBTI is a commercial questionnaire with its own items and scoring. This test has its own situations and answers and its own point count, and it was written independently. Both build on the vocabulary of attitudes and functions that goes back to Jung, which is why the results look alike: four pairs and a four-letter code.
How does the Jung Typology Test differ from Myers-Briggs?
The two names get used interchangeably in searches, but they point to different things. Jung's typology is a theory of attitudes and functions. Myers-Briggs is a questionnaire built on it later, and it sorts people into sixteen four-letter types. All four pairs rest on Jung's concepts, including rationality and irrationality, which is his own dichotomy. The questionnaire and the notation in four letters were created by Briggs and Myers. This test uses the same pairs and letters and names each result in Jung's terms.
Is the Jung Typology Test accurate?
The test asks about habits in everyday situations and sorts the answers into four pairs. A result shows which side of each pair came up more often in those answers, and the percentage shows how clearly. The pairs line up with traits that psychologists measure with other methods, and the reference list includes a paper that compares the two. For reading a result, the four scales are the place to start, and the letters are shorthand for the sides that won.
Can the result change if the test is taken again?
Yes. Each pair is decided by points added up across its situations, so a close pair can tip the other way when a few answers change. A pair with a large percentage tends to hold. The letter behind a percentage near the middle of its scale is the one more likely to change.