Dark Triad Dirty Dozen (DTDD)

The Dark Triad Dirty Dozen (DTDD) is a valid and brief 12-item personality inventory developed to capture the possible presence of three comorbid socially maladaptive traits – the dark triad:

It consists of short statements expressing tendencies characteristic of individual components of the dark triad, while the respondent records the degree of agreement with these statements.

Length of filling

The entire inventory takes approximately 3 minutes to complete.

Individualized feedback for the respondent

After the DTDD evaluation, the subject learns if they have any dark triad traits.

Keywords

Dark Triad Dirty Dozen, DTDD, dark triad, dark triad, narcissism, Machiavellianism, psychopathy

Scoring and interpretation

It is possible to calculate a total score for each subscale separately or a total score for the entire inventory. Higher scores indicate higher levels of the trait.

Response scale

Respondents answer the DTDD items on a 7-point Likert scale: “strongly disagree” (1) to “strongly agree” (7).

References

Jonason, P., & Webster, G. (2010). The dirty dozen: a concise measure of the dark triad. Psychological Assessment, 22(2), 420-432. https://doi.org/10.1037/a0019265

Jonason, P., Webster, G., Kaufman, S., & Geher, G. (2013). What lies beneath the Dark Triad Dirty Dozen: Varied relations with the Big Five. Individual Differences Research, 11(2), 81-90. https://www.researchgate.net/publication/286027132_What_lies_beneath_the_Dark_Triad_Dirty_Dozen_Varied_relations_with_the_Big_Five

Jonason, P., & Webster, G. (2013). Putting the “IRT” in “Dirty”: tem response theory analyses of the Dark Triad Dirty Dozen—An efficient measure of narcissism, psychopathy, and Machiavellianism. Personality and Individual Differences, 54(2), 302-306. https://doi.org/https://doi.org/10.1016/j.paid.2012.08.027

Rogoza, R., Żemojtel-Piotrowska, M., Jonason, P. K., Piotrowski, J., Campbell, K. W., Gebauer, J. E., Maltby, J., Sedikides, C., Adamovic, M., Adams, B. G., Ang, R. P., Ardi, R., Atitsogbe, K. A., Baltatescu, S., Bilić, S., Bodroža, B., Gruneau Brulin, J., Bundhoo Poonoosamy, H. Y., Chaleeraktrakoon, T., … Włodarczyk, A. (2021). Structure of Dark Triad Dirty Dozen Across Eight World Regions. Assessment, 28(4), 1125–1135. https://doi.org/10.1177/1073191120922611