keiley
It really depends on the subject, so for example subjects like methods and chemistry get scaled up regardless of how well you do, but others like food studies and health and pe get scaled down regardless of how well you do.
So keep that in mind, but I would say the best you can do right now is have a good go at exams and try your best. Getting a high score in the exam doesn't guarantee a high atar, but if your whole class does well, your sac score could improve.
This is an example my teacher has given our class in the past. For sacs scores:
Bob- 80% rank 1
Jane- 60% rank 2
Peter- 30% rank 3
And then these people sit the exam, for the exam, there are three exam marks
Exam 90%
Exam 50%
Exam 40%
Regardless of who these exam scores belong to they get given to the equivalent ranking of students in sac scores, so
Bob- 90% exam score
Jane- 50% exam score
Peter- 40% exam score
Bob is the top rank for sacs, so he gets the top exam score. Jane is second rank for sacs so she gets the second best exam score. Peter is third rank for sacs so he gets the third best score.
So this is all quite confusing, and alot of people explain it differently, but what you can take from this is that if your whole class does really well, your sac scores go up. So work together with you classmates and try your best for exams. This system may allow you to get better sac scores by chance, however you keep you exam score and depending on the subject, it can be 40%-60% of your study score. So even if you get good sac scores, your exam score still contributes a large amount. So to get a good study score you need a good ranking, and a good exam score. But even if you don't have a great ranking, a good exam score can help improve your study score. So try your best and collaborative with your classmates !