Education research must be in line with the changes taking place in society, in the social, cultural and historical spheres. Therefore, it is necessary that more qualitative research is developed, in order to investigate the subjects that are part of these changes, such as teachers and students. In the qualitative approach, questionnaires and interviews stand out among the data collection instruments, and there are several techniques for analyzing what was collected by the researcher. This article, then, proposes to present the premises and differences of two techniques, discourse analysis and propositional discourse analysis, through a qualitative research of the bibliographic type. The results considered indicate that both present considerable and rigorous results for the qualitative research, and discourse analysis is more adequate for spoken texts, while the propositional discourse analysis works better with written data.