Despite not being a psychologist, Simon Whistler is more accurate about it than anyone else I’ve seen on YouTube when it’s spoken of (his topics range). The reason I start off mentioning him is because even the professionals stick to stereotypes sometimes and it’s irritating. “Good” ones are typically exclusive to who they teach.
It’s worth mentioning on the side that, even in 2024, it’s still not what many would call an “exact science”. Take the Milgram and Stanford prison experiments for example. Repeat experiments could not repeat findings, in fact history suggests the opposite.