عنوان مقاله [English]
The purpose of present study was investigates psychometric properties of the Toxic Leadership Questionnaire. The statistical population of this study included all staff of Universities affiliated with the Ministry of Science at four levels of international, national, regional and local levels of performance across the country. The research data were collected from 430 staff members who were selected by multi-stage cluster sampling method using Toxic Leadership Questionnaire. The results of the validation of the method showed that the internal consistency and stability reliability of the Toxic Leadership Questionnaire by using Cronbach's alpha was 0/95 and by test-retest method was 0/88. Evaluate the content validity, discriminant, and construct of Toxic Leadership Questionnaire confirms the validity of the questionnaire. Exploratory and confirmatory factor analyses as the main form revealed five correlated but separable dimensions that were "Self-Promotion","Abusive Supervision", "Unpredictability", "Narcissism" and "Authoritarian Leadership". The results of this study showed that the Toxic Leadership Questionnaire (TLQ) is a reliable and valid tool for measuring and screening the Toxic Leadership of academic staff.