I'm just trying to understand the data and how it is arrived at; it's not my forte. A hypothetical English department gets, for instance, 55% at grade 5 and above, and the maths department in the same school gets roughly 43%. The English department ends up with a very negative P8 score, and the maths department a markedly better one (though still shit). This suggests that pupils who achieved the same scores at Y6 went on to perform better in English than in maths nationally.
Why? Other than English being easier(it isn't - well, obviously it is for some kids, but the opposite would be true for others) what other factors could be at play here that I'm too stupid to understand?