Psych 101 says stuff like people being more willing to accept a date with a person after a scary experience since they mistake their quick beating heart for love, rather than humans sees a scary experience as a stronger signal of bonding than a casual experience.

There is so much simple tests that they draw extreme conclusions from in the very first lectures you hear, and when they teach those things as true when its highly debatable its hard to not throw the entire field in the trash.

Of course there is probably some good psychology work done, but you shouldn't have so many shoddy examples in the first course then since that gives people a bad taste for the entire field.