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DARK PERSONALITY TRAITS · SD4

Free Dark Triad Test

Machiavellianism, narcissism, and psychopathy — plus the fourth trait the same author added — on a scale he placed in the public domain. Ordinary traits, not diagnoses.

TRAITS, NOT DIAGNOSES

The names on this page are the ones psychology uses for traits that everyone has some amount of. They are not the clinical conditions that share their names. Narcissistic personality disorder, antisocial personality disorder, and the rest are diagnoses made by a qualified clinician over time, using criteria about impairment and distress that no questionnaire contains and this one does not ask about. A high score here means you endorsed more of these statements than most students in the author's sample did. It does not mean you have a disorder, and a low score does not rule one out.

What a dark triad test measures

A dark triad test measures three socially aversive but non-clinical personality traits: Machiavellianism (strategic manipulation), narcissism (grandiosity and entitlement), and psychopathy (impulsivity and low empathy). This test administers the 28-item Short Dark Tetrad (SD4), which measures those three alongside everyday sadism, using the four subscale labels its author supplies for giving feedback. These are ordinary traits that vary across the whole population, not the clinical personality disorders that share their names.

The last sentence is the one that most dark triad tests skip, and it is the whole difference between a useful result and a harmful one. These traits are continuous dimensions on which everyone falls somewhere. Scoring above average on one is not a category you belong to, and it is not a condition you have.

The four scales

Each is seven statements. The labels below are the instrument author's own, supplied specifically for giving feedback to people who take it; the research term follows in brackets.

Crafty

· Machiavellianism

A strategic, guarded read on other people: keeping your own counsel, cultivating useful allies, and thinking a few moves ahead about who can help you and when.

Special

· Narcissism

A confident sense of your own distinctiveness: comfort with attention, belief in your own talent, and the expectation that you will stand out.

Wild

· Psychopathy

Impulsivity and a low pull toward rules: acting first, pushing back against authority, and a tolerance for risk and confrontation that most people do not have.

Mean

· Everyday sadism

Enjoyment of conflict and of other people's discomfort — in entertainment, in argument, or in the small everyday opportunities to be cutting.

Why this is the SD4 and not the SD3

The Short Dark Triad (SD3) is the measure most people mean by “dark triad test”, and it is not the one used here. The reason is licensing rather than quality. Its author distributes his questionnaires from a page that sorts them into two groups — those in the public domain and available without permission, and those requiring his permission for research use. The SD3 is currently listed in neither. The SD4, by the same author and superseding it, is explicitly in the first group.

An instrument whose licence has to be assumed is not one this site will ship, so the choice was between the scale people search for and the scale that can actually be used. All three Dark Triad traits are measured here in full; the SD4 simply adds a fourth. Every free dark triad test that hands you SD3 items has made a different call about that, usually without mentioning it.

Why there is no percentile

The instrument publishes means and standard deviations for exactly one group: 637 Canadian undergraduates (73% women, mean age 20). Every comparison on your result names that sample. It cannot support a percentile for a general web audience — it is young, mostly women, and drawn from a single university in a single country.

This matters more here than on a personality test. “You are in the 88th percentile for psychopathy” is a sentence people remember, repeat, and occasionally build a self-concept on. Producing it from a seven-item scale and a student sample would be inventing precision about the one topic where a wrong number does lasting damage.

The limits worth knowing before you start

Every one of the 28 items is worded in the same direction. There are no reverse-scored items and no validity scale, which means disagreeing with everything floors all four scales and the questionnaire cannot detect someone managing their answers. On socially undesirable traits that is a real limitation in both directions: most people under-report, and a minority over-report, because a degree of ruthlessness is flattering to claim.

One thing this test cannot do at all is tell you about somebody else. It is self-report; there is no version you fill in about a partner, a boss, or an ex, and reading a description of a trait and matching it to someone from memory is not a measurement. If you came here to make sense of a relationship that is hurting you, the useful questions are what is happening and what you want to do about it — a label applied at a distance answers neither, and answers it confidently, which is worse.

COMMON QUESTIONS

Dark triad questions, answered

Does a high score mean I am a narcissist or a psychopath?

No, and this test will never say that. These four scales measure ordinary personality traits that everyone has some amount of, and they share only a name with the clinical disorders. Narcissistic and antisocial personality disorders are diagnosed by qualified clinicians over time, using criteria about impairment and distress that no questionnaire contains and this one does not ask about. A high score means you agreed with more of these statements than the average student in the one sample this scale publishes figures for. That is the whole claim.

Why does this test use the words Crafty, Special, Wild, and Mean?

Because the instrument’s author does. The scale as he distributes it names its four subscales that way, with a note saying the labels can be used to give feedback to respondents and are much less threatening than the scientific labels. This site follows that instruction. The research terms — Machiavellianism, narcissism, psychopathy, and everyday sadism — are shown alongside them everywhere, because hiding them would be its own dishonesty, but they are names for scales rather than for people.

Why four traits when it is called the Dark Triad?

Because the instrument that could be licensed is the four-trait one. The Dark Triad is Machiavellianism, narcissism, and psychopathy; all three are measured here in full. Sadism is the fourth scale of the SD4 and is reported alongside them because it is part of the instrument that was actually administered — dropping a subscale from a validated measure and reporting the rest is its own kind of misreporting.

Why is there no percentile?

Because there is nothing honest to compute one from. The instrument publishes means and standard deviations for a single sample: 637 undergraduates at one Canadian university, 73% of them women, average age 20. Every comparison on this site names that sample. It cannot support a percentile for a general web audience, and a wrong percentile on a trait like this does real damage.

Can I use this to work out whether someone else is a narcissist?

No. Nothing here is designed for or capable of that, and it is the single most common misuse of this literature. The instrument is self-report: it measures what a person says about themselves, and there is no version of it you can fill in about somebody else. If you are trying to make sense of a relationship that is hurting you, the useful question is what is happening and what you want to do about it — a label applied at a distance answers neither.

Can I fake a low score?

Easily. Every item is worded in the same direction, there are no reverse-scored items, and there is no validity scale, so disagreeing with everything floors all four scales. The instrument also cannot detect the opposite — people who over-report because a degree of ruthlessness is flattering to claim. This is a screening measure built for research volunteers with no reason to distort, and it should never be used anywhere the answer matters to the person giving it.

Should employers use this for hiring?

No. It is not validated for selection, it is transparently fakeable by anyone who wants the job, and using a psychopathy scale to screen candidates is both unfair to individuals and a serious legal risk. The author describes it as a screening measure for research. This implementation is a self-reflection tool and nothing else.

SOURCES

Where this test comes from

  1. [1]
    Paulhus, D. L., Buckels, E. E., Trapnell, P. D., & Jones, D. N. (2021). Screening for dark personalities: The Short Dark Tetrad (SD4). European Journal of Psychological Assessment, 37(3), 208–222. ↗

    The source of the 28 items, the four seven-item subscales, the response format, and the norms used on the result page. The instrument is distributed by its first author under the heading “In the Public Domain — available without permission”, which is why it can be implemented here and checked against the source.

  2. [2]
    Jones, D. N., & Paulhus, D. L. (2014). Introducing the Short Dark Triad (SD3): A brief measure of dark personality traits. Assessment, 21(1), 28–41. ↗

    The better-known three-trait predecessor, and the measure most people mean by “dark triad test”. It is not the instrument used here: its author’s measures page no longer lists it under any permission heading, so there is no current statement granting its use, and the SD4 supersedes it.

  3. [3]
    Paulhus, D. L. (2014). Toward a taxonomy of dark personalities. Current Directions in Psychological Science, 23(6), 421–426. ↗

    Why these traits are described here as subclinical and continuous rather than as categories. The dark traits are ordinary dimensions on which everyone falls somewhere, and they overlap with each other rather than forming distinct types of person.

  4. [4]
    Miller, J. D., Lynam, D. R., Hyatt, C. S., & Campbell, W. K. (2017). Controversies in narcissism. Annual Review of Clinical Psychology, 13, 291–315. ↗

    The basis for this site’s insistence that trait narcissism and narcissistic personality disorder are different things measured in different ways. Self-report trait scales and clinical diagnosis of NPD do not interchange, and treating a questionnaire score as a diagnosis is the most common misuse of this literature.