Ok, one of the teachers told me this, and i think he does know his stuff, but this is the reason why some courses have lower Band 6 candidates, He said it's primarily dependent on if you get the Band 6 Type questions correct, so say for example you achieved 80% in a subject, and did not answer the questions which were Band 6 type, your not a Band 6 student then. But he based it around Software Design and Development, if your an SDD Student and read a post in the forum like about last year saying they would refine and re-look the syllabus for the 2004 candidates, this is a good example, the reason there weren't as many Band 6 students previous years was primarily because there weren't enough questions in the examination written to suit criteria of a band 6 in SDD, so in theory, they either write a few more questions which is considered to fall under Band 6 or they refine the requirements of a Band 6 student.
After saying all this nonsense, i can come to a conclusion to say that no subjects are capped, more or so they just don't have that many Band 6 questions in the exam paper, and no one will know whether a question is Band 6 or not, because the markers come together to determine which one is a Band 6, so perhaps Standard English, Senior Science, etc... just have a few Band 6 questions, and most people never got them correct.
So in theory getting 80 % doesnt gurantee a Band 6, unless you get the majority of Band 6 type questions correct.
Don't take my word for it, but it seems logical, yet silly, because i was always thinking that Bands, determine the marks range.
After saying all this nonsense, i can come to a conclusion to say that no subjects are capped, more or so they just don't have that many Band 6 questions in the exam paper, and no one will know whether a question is Band 6 or not, because the markers come together to determine which one is a Band 6, so perhaps Standard English, Senior Science, etc... just have a few Band 6 questions, and most people never got them correct.
So in theory getting 80 % doesnt gurantee a Band 6, unless you get the majority of Band 6 type questions correct.
Don't take my word for it, but it seems logical, yet silly, because i was always thinking that Bands, determine the marks range.