The Tonga prime minister says there will be a review of the scaling of examination marks.
Akilisi Pohiva, says the review, to be done by a yet to be named person from overseas, will determine whether the Tonga education system should revert to relying on raw marks, rather than scaling.
Mr Pohiva, who is a former teacher, told Television Tonga of one controversial result, that of last year's Forum 7 Economics examination which just 9 of 121 students passed.
But when the marks were scaled 66 got through.
Akilisi Pohiva Photo: AAP (file)
The prime minister says this causes problems when those students undertake tertiary study.
He says supposedly A plus students sent to the Fiji School of Medicine have found it very hard.
Mr Pohiva says with scaling parents do not know what their children are capable of.