There's concerns after problems with the process in Scotland.
Leaving Cert students say they're worried following the controversy over exam results in Scotland.
Over 100,000 students there had results downgraded by a national moderation process.
A U-turn by the Scottish government means they've now been awarded their teachers' prediction instead.
Mountrath's Reuben Murray, President of the Irish Second Level Students Union, hopes the calculated grades system here doesn't run into the same problems:
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