And there's tons of academic research that is cherry picked and doesn't hold over in all contexts. And let's not talk about replicability. In all honesty, my experience with "best practices" research is that it's kind of a joke and any author can use it to support any point they want to make, just by tailoring their subjects. And then they assume what works well in, say, inner city Detroit would work just as well in BFE Kentucky, without taking into account any cultural differences, etc. Education research is a joke, in my experience of having to read it repeatedly during my MAT.