I understand that they are looking for randomized studies, but there are some other criteria that I am less clear about.
The studies have to be about humans, is that correct?
Also, in the training it says that they accept studies that don’t meet the criteria of a true experiment exactly. For example, they accept quasi-randomized studies. I know what a randomized study is, but I’m a little less clear about just exactly what a quasi-randomized study is all about. If you could provide some clarification, that would be helpful. That they are looking for randomized studies is reasonably clear, but it gets tricky when they start adding in all the exceptions that they are making to their rule.