Aligning and Scaling
English Extension 1 is curious because you all do different topics which are marked in different teams (I believe). So I think there will be multiple processes involved: weighting, aligning, and scaling.
This is my belief of the process (Lazarus! Oh Lazarus! Where art thou?)
Weighting is done by the Board and affects the total weighted mark ("TWM") in the subject. Your weighted mark would (again, I think) be affected by how well people in your elective (Crime Fiction, Postmodernism, …) did in the Advanced Paper. So if everyone in Crime Fiction gets a Band 6 in English (Advanced) but only gets 20/50 raw, their total weighted mark would be altered. On second thoughts, I think the different weightings may be purely on how difficult the exam is. Nevertheless, the Judges may consider this.
The only data we have for aligning is for Lazarus (2001) who got 33/50 TWMwith an aligned mark of 44 and a 33.7/50 raw with an aligned mark of 45. It's pretty safe to say the E4 cut-off for 2001 was 34/50. I don't think this would change much in other years.
Scaling is definitely done by comparing the results of people in English Extension 1 in the Advanced Paper. So, if everyone has done really well in the Advanced Paper, but everyone goes really poorly in the Extension 1 paper, candidates' scaled marks will be high but not their aligned marks.