EN
The article is based on a review of verbal operant behavior by B.F. Skinner. Verbal operant behavior can be the basis for building a major functional diagnosis. A diagnostic tool built on the principle of representation of the different verbal behavior would assess the level of mastery of verbal skills needed in the communication process. Drawn up on the basis of research, a protocol diagnosis would be a ready therapeutic program. Currently, there isn’t any diagnostic tool in Poland that meets these criteria or has been developed on the basis of the Polish language system.