This seems overly simplistic, I mean part of the reason so many studies are so difficult is because they can happen over the period of months or years. This isn't like your High School chemistry experiment. These studies can be massive longitudinal studies that take years to conclude and work on.
If the answers were easy I'm sure someone would've implemented it already, it turns out those kind of things are hard.
If the answers were easy I'm sure someone would've implemented it already, it turns out those kind of things are hard.
I'd recommend checking out the following article. https://slatestarcodex.com/2014/04/28/the-control-group-is-o...