Skip to main content

Why Use This Test?

1. High validity and reliability. There is good scientific evidence that the three Dirty Dozen / Dark Triad traits are solid as constructs and that the Dark Triad framework should be admitted into the mainstay of scientific personality testing.

2. Free. This online personality test is delivered to you free of charge and will allow you to obtain your scores on all three Dirty Dozen / Dark Triad traits.

3. Benchmarked to population averages. While there are other Dirty Dozen / Dark Triad personality tests in existence, ours is one of the few to link the respondent's Dirty Dozen / Dark Triad scores to a benchmark of population averages, as determined by peer-reviewed personality studies.

4. Based on peer-reviewed research. The present test was crafted on the basis of peer-reviewed research, as published in the notable scientific journal 'Psychological Assessment' by Peter K. Jonason and Gregory D. Webster.

5. Statistical controls. Test scores are logged into an anonymized database. Statistical analysis of the test is conducted to ensure maximum accuracy and validity of the test scores.

6. Made by professionals. The authors of this free online personality test are certified in the use of different personality tests and have worked professionally with personality typology and personality testing.

Dirty Dozen Test

There has been an exponential increase of interest in the dark side of human nature in the last decade. To better understand this dark side, scientists have developed the Dark Core and Dark Triad tests.

The Dirty Dozen test is a scientifically-validated and shortened version of the Dark Triad test. Like the Dark Triad test, the Dirty Dozen measures the socially undesirable traits of Narcissism, Machiavellianism, and Psychopathy. The Dark Triad test is often used by police and the courts, in psychiatric wards and evaluations, and even in big corporations.

Where do you fall on the Dark Triad traits? For each of the following statements, indicate your level of agreement below.

Question 1 of 12

I tend to exploit others toward my own end.

Disagree
Agree

NEXT

The IDR-DDT© is not the equivalent of the Dirty Dozen.

The IDT-DDT© is the property of IDR Labs International. The Dirty Dozen is the property of Peter K. Jonason and Gregory D. Webster, and is published in the 'Psychological Assessment' journal, which is affiliated with the American Psychological Association and focuses on articles advancing clinical assessment science and practice.

The three socially dark characteristics of Machiavellianism, Narcissism, and Psychopathy are often conceptualized as three interrelated traits known collectively as the Dark Triad or Dirty Dozen. This test aims to measure the respondent's Dark Triad / Dirty Dozen traits according to brief and easy-to-answer test items that nevertheless provide an accurate measure for the individual's Dark Triad / Dirty Dozen traits. Numerous peer-reviewed studies (see references on the result page) were analyzed and used to determine the structure of this test, as well as the benchmarks and population averages used. Together, these studies inform the theoretical and methodical background of the CT-DT3© and the IDR-DDT©, yielding dependable and substantial measures of the Dark Triad / Dirty Dozen traits.

Although all are designed to measure Dark Triad traits, the CT-DT3© and the IDR-DDT© should not be confused with the Dirty Dozen, as authored by Peter K. Jonason and Gregory D. Webster. However, all are professionally-designed personality tests (or instruments) meant for measuring traits pertaining to the dark personality triad of Narcissism, Machiavellianism, and Psychopathy. The IDR-DDT© is the property of IDR Labs International. The Dirty Dozen is the property of Peter K. Jonason and Gregory D. Webster, and is published in the 'Psychological Assessment' journal, which is affiliated with the American Psychological Association. The authors of this online personality test are certified in the use of multiple personality tests and have worked professionally with typology and personality testing. The results of our online Dirty Dozen Dark Triad personality test are provided for educational purposes only, solely "as-is", and should not be construed as providing professional or certified advice of any kind. For more on our online personality test, please consult our Terms of Service.