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– This study had five objectives: explain the initial steps that led to the construction of the Ethical Leadership Questionnaire (ELQ); analyze the items and verify the ELQ reliability using item response theory (IRT); examine its factorial structure with a confirmatory factor analysis (CFA) and an exploratory structural equation modeling (ESEM) approach; test the item bias of the ELQ; assess the relation between the ELQ dimensions and ethical sensitivity. The paper aims to discuss these issues.

– Study 1 and Study 2 involved 200 and 668 respondents, respectively. Step 1 consisted in IRT; Step 2 in CFA and ESEM analysis; Step 3 in invariance of the ELQ items across gender, and Step 4 in structural equation modeling.

– Results indicated the presence of the three types of ethic in the resolution …