My class hasn't done it yet we're doing it soon, but my friend's class has basically for AQA you get either a Pass, Merit, or Distinction. Distinction being the highest you have to deliver a confident speech about something you feel passionate about and show you're able to clearly and confidently able to answer questions on the said topic. A sample of people may be recorded and sennt to the examboard to make sure the teachers marking is all in order and that there's no bias. This is seperate from the main English Qualifications.