Study assessed the dimensional structure of the Job Content Questionnaire's (JCQ 2.0) main scales in two different work contexts. We evaluated two surveys among Brazilian workers, comprising 3084 health workers and 489 industrial workers. An exploratory factor analysis with oblique Geomin rotation explored the model, and subsequently, a confirmatory factor analysis assessed the factor structure and possible modifications of the model. The internal consistency of JC scales was assessed by using

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... stimates of composite reliability and Cronbach's alpha. The structural model was confirmed, with a good fit in the two studies, despite low factors' loads for some items of "decision authority" and "psychological job demands". We concluded that the JCQ dimensional structure corresponded to its theoretical framework in the two work contexts analyzed.