I would just avoid factoids from psychology altogether for the next few years while the researchers in that field sort everything out. https://www.theatlantic.com/science/archive/2018/11/psycholo...
Worse, some of the famous studies aren't merely underpowered or based on nonrepresentative samples (like college kids) or sloppily executed — some famous studies are outright fraudulent. https://www.vox.com/2018/6/13/17449118/stanford-prison-exper...