What do New Mexico, Alabama, Louisiana, and Mississippi have in common? Their public schools all routinely rank among the worst in the US. These states also allow corporal punishment of children. In contrast, Vermont, Massachusetts, and Connecticut usually appear close to the top of the list in US education and do not allow corporal punishment in schools.
These are correlations and don’t prove anything about cause and effect. At the same time, this data suggests something that’s obvious for most people–that paddling kids in school doesn’t improve educational achievement, nor does it do much to improve classroom behavior.