I france, this allegedly doesn't exist, but we have some private schools that use some of the tactics GP and OP describe (especially isolement). Mostly highscho

I france, this allegedly doesn't exist, but we have some private schools that use some of the tactics GP and OP describe (especially isolement). Mostly highschools aimed to late teens, "luckily". They might do better on test, so there is that, but they also have classes of 20 max, unlike most public and most other private but les stringent schools. I think this is 90% of their success (i can elaborate on that but this is personnal anecdata, not a all something to be taken seriously)