تأثیر مثلث تاریک شخصیت بر رفتارشهروندی سازمان: نقش بیادبی در محیط کار و اخالق کار اسالمی.

Human resources play an important and fundamental role in gaining and maintaining competitive advantage in organizations, and for this reason, new concepts such as the dark triad of personality and its relationship with employees' perceptions and behaviors are gaining the attention of researchers. This research was also conducted with the aim of investigating the effect of the dark triad of personality on organizational citizenship behavior with the mediating role of rudeness in the work environment and Islamic work ethics in Tabriz Petrochemical Company. This research is applied in terms of purpose and descriptive-survey in terms of nature. The statistical population of the present research consists of the employees of Tabriz Petrochemical Company, under the ownership of National Iranian Petrochemical Industries Company, which has 941 official employees; Out of this number, about 200 people responded to the questionnaire items as a sample based on Cochran's formula and using the available sampling method. The data collection tool was a researcher-made questionnaire taken from the studies of Johnson and Webster (2010), Cortina et al. (2001), Podaskoff et al. (1990) and Tofail et al. To measure the face validity of the questionnaire, the experts' opinions were used and to measure its content validity with a relative content validity index, the opinions of 10 experts knowledgeable about the research topic and its reliability or validity were considered and Cronbach's alpha coefficient test was applied. Data were analyzed using SPSSS Software and partial least squares method and Smart PLS Software. Examining the results of this research showed that the dark triad of the personality directly affects the organizational citizenship behavior and rudeness in the workplace. Moreover, rudeness in the workplace has a significant effect on the organizational citizenship behavior, and finally the Islamic work ethic has a significant effect on the organizational citizenship behavior. Impoliteness in the workplace mediates the relationship between the dark triad of the personality and organizational citizenship behavior. Furthermore, Islamic work ethics moderates the relationship between impoliteness in the workplace and organizational citizenship behavior. [ABSTRACT FROM AUTHOR]