Adaptation and Psychometric Properties of the Short Dark Tetrad in a Peruvian Sample

The aim of this study was to adapt the Short Dark Tetrad (SD4) to a sample of 617 Peruvian adults. The translated version presented validity evidence based on test content and cultural suitability for the target population. We analyzed reliability and different sources of validity evidence on the SD4 and on a shorter version called Super-Short Dark Tetrad (SSD4). Reliability estimates were adequate for the SD4 measures ω = .715-.888, whereas the SSD4 had lower estimates ω = .662-.788. Factorial structure analyses denoted a questionable fit for the original 4-factor model and an adequate fit for a bifactor model on both SD4 and SSD4. Evidence in favor of strict measurement invariance was found regarding age (nage < 25 = 362, nage ≥ 25 = 255) for both versions while evidence for scalar invariance regarding gender (nmen = 264, nwomen = 353) was found only for the SSD4. Relationship analyses resulted in high consistency between the SD4 and SSD4 scores with the Dark Triad Dirty Dozen, except for the narcissism subscale.