When the evidence is sketchy or fabricated (or p-hacked), as in psychology, the label "evidence based" doesn't mean very much.
Just look at decades of research into nutrition, and note that we haven't moved very far beyond "vitamin c prevents scurvy" and "too much of anything is bad". Even identifying at what point the amount of things like "too much" of salt or cholesterol crosses the line of "too much" remains contentious.
Certain diagnostic fields have obviously grown leaps and bounds, as have certain categories of medicines. On the other hand, there are counter examples aplenty.
Just look at decades of research into nutrition, and note that we haven't moved very far beyond "vitamin c prevents scurvy" and "too much of anything is bad". Even identifying at what point the amount of things like "too much" of salt or cholesterol crosses the line of "too much" remains contentious.
Certain diagnostic fields have obviously grown leaps and bounds, as have certain categories of medicines. On the other hand, there are counter examples aplenty.