An educational advisor says Ireland should not abandon its plan for predictive or calculated grades in State exams.
It follows issues with the system and a u-turn in the UK.
The UK government and the British exams regulator Ofqual are being threatened with legal action, as pressure mounts for a re-think over the awarding of grades there.
Around 280,000 students saw their grades fall by one grade or more from their predicted results following the introduction of a new 'moderation' algorithm.
John Walshe was an advisor to the former education minister Ruairí Quinn, and is a columnist with the Irish Independent.
He told Newstalk Breakfast the Irish system is not the same as that in Britain.
"There are marked differences between what happened in the UK and what's happening with the Irish Leaving Certificate.
"In the UK, students got their estimated grades and their actual calculated grades - that's a grade from the school and the calculated grades - on the same day.
"So they were able to see immediately the difference between the two, and that caused great anguish for a lot of students.
"Especially when it was revealed that 40% of the downgrades affected disadvantaged students, and the upgrades benefited students going to elite public schools, as they're called."
"I don't think that will happen here for a number of reasons - some technical reasons.
"Irish schools were not asked to provide estimated grades - they had to give a percentage mark for each student, and that was layers of going over that with fellow teachers of the same subject and they were signed off by the principal.
"So it was a school calculated or estimated percentage mark that went to the department, and the huge emphasis is on that estimated mark.
"In England what they did was they used a formula which the starting point was a historic pattern of achievement and they used the schools data to work into that.
"We're doing it the other way round".
He denied there was anything behind a week-long long delay between students getting their results, and finding out their calculated percentage mark.
"I don't think I'd read too much into the delay - some people have conspiracy theories that this was deliberate to avoid a row they had in the UK, it's not.
"It was clear from May that after the results were issued, that students will be able to see a record of their individual percentage mark and their ranking.
"So they will get the results on Monday the 7th, the CAO offers will be available from 2pm on the 11th, and then the following Monday the 14th they will be able to access their individual marks and rankings".
"Historically, about 80% of students get their top three choices - I don't think there'll be a marked difference this year in that pattern".
