Public schools often repeat ideas over and over until the knowledge sinks in to the learning memory of the students. Repeating ideas can have a hypnotic like effect in establishing beliefs. A famous qoute by Hitler was "repeat a lie over and over enough times and it becomes the truth". But I am not sure how much "brainwashing" is also classified as being "hypnotic". Repeating the idea of evolution over and over in the presence of kids who go into a trance created by the boredom of a school classroom can be hypnotically influenced by the words suggested, it would seem.
Here is another book and it is about secular brainwashing and no doubt this material would include data about the relationship between brainwashing and hypnotic influences.
FHU - Soviet Textbook on Psychopolitics