You say that but the fact that dark patterns in games, apps, websites, and advertising are so effective would seem to contradict this. Also, a psychiatrist is a

You say that but the fact that dark patterns in games, apps, websites, and advertising are so effective would seem to contradict this. Also, a psychiatrist is an MD and completely different that a psychologist who usually has a PhD and is actually running experiments. That said, psychology does have a repeatability problem for sure. The sheer volume of papers submitted is so much noise that picking out the signal is a hard problem with no good solution at the moment.