This paper discusses the topics of psychosocial intervention and the psychologist's qualification, analyzing a case study of an intervention experience developed in a school of Belo Horizonte as an action of primary care in public health. It presents a detailed description of the intervention process during three years of work. Concomitantly, it develops an analysis of this experience in dialoguing with concepts from institutional analysis and Foucault's work. It emphasizes the function of the intervener as a support role in the process, the local collective being the major protagonist, despite the frequent narratives that describe him as an "outsider" specialist with the task of empowering the group's autonomy and self-management. It discusses as well the importance of a qualification that brings together contributions from the field of clinic psychology and social psychology, favoring the development of multiple competencies and abilities for new areas of work.
Public health; psychosocial intervention; psychologist's qualification; institutional analysis; Foucault