Ahmed Oli, Naher Lutfun, Islam Rohmotul, Akter Moslima, Deb Shila
Department of Psychology, University of Chittagong, Chattogram 4331, Bangladesh.
Heliyon. 2020 Nov 7;6(11):e05341. doi: 10.1016/j.heliyon.2020.e05341. eCollection 2020 Nov.
Three undesirable social traits (Machiavellianism, psychopathy, and narcissism) collectively known as the'Dark Triad' have gained huge empirical attention during the past decades. The Dark Triad Dirty Dozen (DTDD) is a brief and psychometrically sound tool for assessing dark traits. In the present study, the psychometric properties of the DTDD-Bangla were assessed ( = 371) as there no information about its psychometric adequacy in the Bangladesh context. The item analysis results demonstrated that the DTDD-Bangla had good item discrimination indices in both CTT and IRT. The confirmatory factor analysis results supported the three factors first-order model in terms of model fits and items' factor loadings over the bi-factor model. Scale level analyses revealed that this scale and its subscales had good internal consistency reliabilities and composite reliability. The MGCFA supported scalar invariance between males and females. Overall, the DTDD-Bangla seems psychometrically sound measure to assess the dark traits and can be used in further researches in the Bangladesh context.
三种不良社会特质（马基雅维利主义、心理变态和自恋）统称为“黑暗三性格”，在过去几十年中受到了大量实证研究的关注。黑暗三性格十二项量表（DTDD）是一种用于评估黑暗特质的简短且心理测量学上可靠的工具。在本研究中，对孟加拉语版的黑暗三性格十二项量表（DTDD-Bangla）的心理测量特性进行了评估（样本量n = 371），因为在孟加拉国背景下没有关于其心理测量充分性的信息。项目分析结果表明，DTDD-Bangla在经典测验理论（CTT）和项目反应理论（IRT）中都具有良好的项目区分指数。验证性因素分析结果在模型拟合和项目在双因素模型上的因素负荷方面支持三因素一阶模型。量表水平分析表明，该量表及其子量表具有良好的内部一致性信度和组合信度。多组验证性因素分析（MGCFA）支持男性和女性之间的标量不变性。总体而言，DTDD-Bangla似乎是一种心理测量学上可靠的黑暗特质评估工具，可用于孟加拉国背景下的进一步研究。
