Only the first and last ranked internal don't, the rest all get moderated but could be up or down.
Here's how it works:
- The 1st internal gets the top Exam mark (as his/her Assessment mark)
- The last internal gets the last Exam mark
After these two the remaining of the Exam marks pool is distributed to the rest of the cohort, in proportions approximately equal to their own proportion in the Internal marks pool. So the bigger your internal proportion and the bigger the cohort's external pool, the bigger your share of it. And vice versa.