I want to tell you about an interesting effect that is used not only by teachers, but also by marketers and salespeople.

The Dr. Fox effect is the psychological effect that the great expressiveness of the lecturer can completely disguise the uselessness and fictionalization of the entire lecture for the learners, making the learners feel as though they have actually learned something.

That is, the more expressive and convincing the speaker is, the more positive assessments he will receive from the audience. The effect got its name in 1970, when an experiment was conducted at the University of California Medical School, where a trained actor gave a talk under the name of Dr. Myron Fox. The content of the report was in a scientific style, but the report was poorly related to the topic, was incomplete and contained contradictory statements and neologisms. The actor, who does not understand anything about the topic of the report, spoke expressively and brightly (expressively), winning great sympathy from the audience. In a nearby auditorium, a real physician spoke in front of a similar audience in his usual manner.

After interviewing the participants in the "Doctor" experiment, Fox seemed more professional and literate to them.

Now think about whether the personality of the interlocutor (or his authority) influences your perception of his information and does it seem reliable?