Did it set back psychiatric practice? Maybe not. But did the Rosenhan experiment set back the public perception of psychiatry? How could it not? If you remember that suicide hotlines are life-saving interventions, and that a lot of don't call them because they think they're staffed by "head-shrinkers"...
At the very least, Rosenhan convinced a lot of people that the Church of Scientology might be right about something.
At the very least, Rosenhan convinced a lot of people that the Church of Scientology might be right about something.
https://en.wikipedia.org/wiki/Scientology_and_psychiatry