Questions épistémologiques et méthodologiques sur la validation en psychanalyse

The question of the psychoanalysis as science is recurring. We can consider, at the very least, that it is a practice based on a rational and formal theory. But, according to the project of Freud to give it statute of an empirical science, remains to find the method which would allow, in a field which lends itself badly to the traditional experimentation or even “with single case”, to validate its proposals empirically. Here the difficulties and condition of such a validation are examined, which would allow, moreover, of advancing on the question of the evaluation of its therapeutic effects.