I don't quite understand the motivations behind the different forms of examination systems. For instance, in the UK, the GCSE and A level exams are held nationally by a set of examination boards. However, things are different here in the US. Exams till 12th grade are done locally.

What is this the case?

The US school system produced "Dubya"

commented: irrelevant, and of course only silly idiots still haven't gotten over their BDS +0
commented: lol +0

it's an irate name leftist idiots suffering from Bush Derangement Syndrome use for the former US president.
It only shows their immaturity.

I am far right of republican, mensate, non-American, if you prefer, the US school system produced Paris Hilton, and Dubya.
A school system that has not some oversight authority produces graduates who are illiterate, without any personal disparagement, Americans can't find Europe on a map of Europe