PPrunE Towers et al.
Even if all the results were published it doesn't present the whole story. It only reflects the exams taken and NOT how the student got to sit them, see below.
In theory all groundschools SHOULD have their students sit a mock/practice/school final to prove to the CAA that the student has a good chance of passing the exam. How this is actually done is down to the school itself and its own internal system.
They range from those who won't let their student sit the exam unless they get 80% in a mock, some warn against taking the JAA if they get below a certain mark eg 65% and others just sign them off.
So unless they all sit the same mock and have the same go/no go criteria the results will never give a direct like on like comparison only a guide. Like any form of statistics, treat with care!
However the most worrying comment on this post is;
Many guys in our class going for "bristoling" questions, just memorizing
Hopefully any airline interview will weed this lot out.
Now can we close this post as it's losing the plot.