The aim of this paper is to report the partial results of an exploratory investigation into how twelve psychoanalysts of different theoretical-clinical orientations perceive and use hypotheses about the phenomena of change in connection with selected material from a psychoanalytic treatment. The Three-Level Model (3-LM) was used for the observation of patient transformations and for the collection of data. This was followed by the statistical analysis of the behaviour and relationship of a set of variables relating to the type and degree of change perceived in the patient's mental functioning during the course of her treatment. The results reported here show that there was significant agreement among the participants, irrespective of their theoretical-clinical orientation, as regards the following: 1) the positive impact of the application of psychoanalytic treatment in diverse areas of the patient's mental functioning; 2) the explanatory hypotheses of the changes observed in the patient under consideration; 3) the usefulness of the experience of group exchange using the 3-LM in observing and understanding the changes in the patient.
Keywords: Psychoanalysis; Three-Level Model; clinical common ground; empirical research.