Psychodiagnosis is a recurrent case study practice in psychology; independently of being done in private offices, schools, hospitals, ambulatory and/or educational institution. The present article discuss the institutional dimension of that practice, when treated as a disposal that legitimize more and more its object: the psyche knowledge of those who subject themselves to the psychologist services. Such discussion comes from the highlight of concepts like speech, individual, institution and analysis, that were taken on the psychoanalysis fields and on the analysis of concrete institutions. That articulation makes possible a case study that considers the institutional context of the diagnosis. Finally, a proposal is made: how to proceed in a case study that assumes the constitutive strench of this context on the results of a client/patient psychodiagnosis of the psychologist.
Psychodiagnosis; Psychotherapeutic processes; Residential care institutions