Only if you have national standards and you use weighted pass scores and not absolute ones ie top 5% is a A Otherwise you get grade inflation for example when

Only if you have national standards and you use weighted pass scores and not absolute ones ie top 5% is a A Otherwise you get grade inflation for example when I left school an Civil service ASO (assistant scientific officer) you needed 5 or 6 O levels (age 16 exams) now its a Degree entry.