Smaller class sizes would probably help as a blunt measure. Might have to be down to 5-1 or 10-1 to really know it’s controlled though. And this isn’t practical

Smaller class sizes would probably help as a blunt measure. Might have to be down to 5-1 or 10-1 to really know it’s controlled though. And this isn’t practical. If my hunch that bullies are products of abuse or otherwise need psychological help is true then trying to identify and help bullies and their victims could help.