Introvert, extrovert or ambivert? What a good test measures

Are introverts and extroverts two kinds of people?

No. Extraversion is one dimension, and introversion is the name for the low end of it. When researchers collected the trait words a language keeps for describing people and looked at which moved together, one large cluster gathered around talkative, outgoing, energetic and sociable, with quiet, reserved and private at the other pole (Goldberg, 1990). The NEO inventories, built from questionnaire items rather than adjectives, report the same dimension as one of their five domains (Costa & McCrae, 1992), and the structure appeared again when observers rated people they knew well in 50 cultures (McCrae & Terracciano, 2005).

Put in ordinary words, the trait is how much you enjoy being around people, talking, and doing lively things, and how much energy that gives you.

Scores on it are distributed roughly the way height is: one hump, most people near the middle, fewer at each end, no gap anywhere. If a test hands you a single word, it has taken a position on a continuous scale and rounded it, and the rounding is invisible afterwards. On spelling: extrovert is the everyday form, extraversion with an a is what the research literature settled on, and they mean the same thing.

What is an ambivert?

An ambivert is not a third kind of person. It is a plain word for the middle of the scale, where most people are. If you answer it depends to almost every introvert or extrovert question, that is not indecision but an accurate report of a middling score, and the most ordinary result there is.

The middle has been studied directly. In a study of call-centre salespeople, hourly revenue was highest for people near the middle of the extraversion scale and lower at both ends, including the very extraverted end sales folklore favours (Grant, 2013). That is one study in one job, and should not be stretched into a rule about who sells well. It does show that the extremes are not automatically the interesting places to be.

Why do two introverts seem so different?

Because Extraversion sits on top of narrower traits called facets. They correlate with the domain, but they come apart in individual people, and they add prediction the domain score alone misses (Soto & John, 2017). At an intermediate level the dimension splits into two aspects, enthusiasm and assertiveness, related but far from identical (DeYoung et al., 2007).

Two people with the same overall score can be unrecognisable to each other. One is low on Gregariousness and Excitement Seeking and high on Assertiveness: bad at parties, entirely willing to run the meeting. Another is warm and funny one to one, and flattened by a room of thirty. A third is happy in company as long as nothing is hurried. A test with two answers calls all three introverts.

Can an introvert act extraverted?

Yes, and it tends to feel good while it lasts. People have recorded their own behaviour and mood many times over several weeks. They reported more positive feeling in the moments when they were acting more talkative, bold and energetic, and that held for people low on the trait as well as high on it (Fleeson et al., 2002). The relationship held within people: the same person felt better in their own extraverted moments.

Later experiments asked introverts to act extraverted on purpose during a group task. They reported more positive feeling than introverts asked to act reserved, much as extraverts did, and negative feeling did not rise. The cognitive cost the researchers looked for turned up only among extraverts asked to act introverted, not among the introverts (Zelenski et al., 2012).

Acting outgoing in a given situation is available to anyone. It does not mean introverts should live as extraverts, and it is not the same as moving the trait itself: across 207 intervention studies, trait measures shifted by about a third of a standard deviation over roughly six months, largest for Emotional Stability, and drawn mostly from therapy and counselling trials (Roberts et al., 2017).

Are extroverts happier?

On average they report more positive feeling, and the finding is old and well replicated. In a long-running study, extraversion predicted positive mood a decade later, while neuroticism predicted negative mood, and the two ran largely independently (Costa & McCrae, 1980). Later work found the link moderate to strong across different scales, though momentary and daily-diary reports of mood give lower correlations than retrospective ones (Lucas & Fujita, 2000).

The association is moderate, so plenty of introverts report more positive feeling than plenty of extraverts, and positive feeling is one part of a good life. Emotional stability matters more for how bad the low points are, and the traits together explain part of well-being rather than most of it (Steel et al., 2008). Introversion is not a deficit.

Why does a two-answer test mislead?

Because it throws the measurement away at the last step. The best-documented case is the extraversion scale inside the Myers-Briggs Type Indicator. Its scales behave as continuous dimensions rather than as true dichotomies, so the letter you receive reflects which side of a cut point you landed on rather than a real divide (McCrae & Costa, 1989). A review of the instrument's psychometric record concluded that the four-letter formula will not carry the inferences commonly drawn from it (Pittenger, 2005).

Length is the other common problem. Reliability rises with the number of questions, and very abbreviated measures understate how much a trait actually matters (Credé et al., 2012). None of this makes introvert and extrovert useless words. The trouble starts when a word is treated as a fact about you that a number would have described better.

How can you tell roughly where you sit?

This is a rough self-check, not a measurement. It has no norms behind it and no scoring, and it cannot give you a percentile. Notice which way you lean.

• After a long evening with people, you usually feel refilled rather than emptied.
• You think best out loud, and a conversation clarifies an idea faster than an hour alone with it.
• Silence in a group registers as a gap to close rather than a pause you are happy to leave.
• You agree to plans before checking whether you have the energy for them.
• Strangers are more interesting to you than tiring, including at the start.

Mostly true, and you probably sit above the middle. Mostly false, and below it. An even split puts you in the middle band with most people, and a proper measure would say which facets pull which way.

How does Wellington measure Extraversion?

Wellington is a science-based personality assessment from Therabot Labs LLC. It measures personality as continuous traits, built on the Big Five and HEXACO models, and writes the results back as a personal report rather than a type.

The free Snapshot asks 60 questions, takes about 7 minutes, and scores 6 dimensions: the Big Five and Honesty-Humility. 10 of those statements belong to Extraversion. Each is rated on a five-point accuracy scale, your Extraversion score is the average of its statements, and that average is reported as a percentile against the reference sample, in one of three bands: Quiet below the 30th percentile, Balanced to the 70th, High above it. The bands and the Portrait names exist to make the result easier to talk about; the percentile is the measurement, and it is always shown alongside. The norms are provisional until the norming sample is complete. You answer the first ten questions straight away, then sign in with an email so your answers are saved and your results can be shown. There is no card.

Every band has its own written page, prepared in advance by the writing and psychology team, and your answers choose which one you read. For Extraversion the three are The Quiet Room for the Quiet band, The Steady Current for the Balanced band and The Open Door for the High band. The Balanced page describes the middle properly rather than as a shrug, because the middle is where most people land. None of the three is the good one.

The Wellington Membership adds the Portrait, 336 questions in 4 chapters and about 36 minutes, to reach 90 traits. That is where all 11 Extraversion facets are scored separately, which is what explains why you and a friend with the same score describe different people. See the methodology. Wellington is a wellness tool for reflection, not a medical or psychological diagnosis, and it does not replace care from a qualified professional. It is not designed for hiring, and you can export or delete your data at any time.

Questions people ask

Can you be both an introvert and an extrovert?

You can sit in the middle, which is where most people sit, and the word for that is ambivert. It is not a combination of two types but a middling score on one scale, and it usually means your behaviour depends more on the situation, the people and your energy that week than it does for someone at either end.

Is an introvert just someone who is shy?

No. Shyness is discomfort in social situations, and it sits closer to emotional stability than to extraversion. Introversion is a lower pull toward company and stimulation. A confident introvert who prefers fewer people is common, and so is a shy extrovert who wants company and finds it hard to start.

Which introvert extrovert test should I take?

One that reports a score rather than a label, says what it compares you against, and measures the facets beneath the trait. Length matters too: very short scales understate how much a trait matters (Credé et al., 2012). The free Wellington Snapshot reports a percentile and a band on all six dimensions.

Does Wellington tell me whether I am an introvert?

It tells you where you sit on Extraversion as a percentile against a reference sample, and which of three bands that falls in, with a written page for that band. If your score is in the Quiet band, introvert is a fair word for it. The number is the useful part, and the membership breaks it into its facets.