If you read Gina Perry’s critique, her conclusions is that fewer than half of the participants thought it was real. These were Yale students, so probably smarter than average, and the study didn’t do a very convincing job make it seem believable from what I’ve read. When I took psychology in college I had to submit to random experiments to as part of my grade (there were alternatives but the experiments were easier).…
That's pretty fun that your teachers did that. I wish teachers attempted to immerse students in the things they're teaching about more often, rather than just reading about it in abstract through a textbook or whatever.
And social science/history/economics is about learning the standard lessons of the field (even if those lessons are themselves simplistic compared to the real world, they are a baseline of common knowledge).