One of the harshest applications was around academic performance. If I had any bad marks, or a teacher reported sluggish work or improper behaviour, it wasn't good.
And whether as result of personal talent (ha!), or simply through being beaten and fear-driven into learned intensity, you'd better believe I was the top of my class or close to it most of the time.
But the stress part-destroyed my social abilities and integration (as opposed to academic learning), and along with other unusual childhood stressors and instability I suffered, is the biggest reason why later I spent most of my adulthood walking my own path - to the extent of being considered autistic.
It's too bad that's not what the institutions are doing.
The study itself acknowledges prior research in the area, and is far beyond mere empirical results confirming a hunch educators have had (and insufficiently addressed) for a long time.