The Stanford Prison Experiment was massively influential. We just learned it was a fraud.
The most famous psychological studies are often wrong, fraudulent, or outdated. Textbooks need to catch up.
https://www.vox.com/2018/6/13/17449118/stanford-prison-experiment-fraud-psychology-replication
This one below is a couple of years old.
Scientists Replicated 100 Psychology Studies, and Fewer Than Half Got the Same Results
The massive project shows that reproducibility problems plague even top scientific journals
https://www.smithsonianmag.com/science-nature/scientists-replicated-100-psychology-studies-and-fewer-half-got-same-results-180956426/
I am surprised that this doesn't get talked about more often