LONDON, England (AP) — In a U-turn after days of criticism, the British government on Monday scrapped an exam-grading policy that was set to deprive thousands of 18-year-old school-leavers — especially the more disadvantaged — of places at universities.

Roger Taylor, head of the exam regulator Ofqual, said the use of an algorithm to predict the results of exams that were canceled by the coronavirus pandemic had caused “real anguish and damaged public confidence”.

“It has not been an acceptable experience for young people,” he said. “I would like to say sorry.”

Universities in the UK offer final-year high school students places based on grades predicted by their teachers. Admission is contingent on the results of final exams, known as A Levels.

This year, with schools largely shut since March and no exams, education authorities in England ran the predicted grades through an algorithm, intended to standardise results, that compared them with schools’ past performance. That meant high-achieving students at under-performing schools, many in deprived areas, saw their marks downgraded, while students at above-average schools kept their predicted grades.

Hundreds of students have held protests, calling the results an injustice, and lawmakers were inundated with complaints from angry parents.

Kay Mountfield, head teacher at a school in Marlow, west of London, said 85 per cent of her students had received lower than predicted grades.

“Seventy of my students have not had their first choice of university,” she said. “Normally that would be about five, or 10 maybe, students.”

The reversal means students in England will receive the grades estimated by their teachers, unless the ones generated by the algorithm are higher. Education authorities in Scotland, Wales and Northern Ireland have made similar moves.

The same policy will apply to GCSEs, the exams taken by 16-year-old students. Those results are due on Thursday.

The U-turn is an embarrassment for Prime Minister Boris Johnson’s government, but had come to appear inevitable as criticism of the policy spread, even within the ranks of the governing Conservative Party.

“This group of young people have lost out on so much already; we must ensure that bright, capable students can progress on their next step,” Paymaster General Penny Mordaunt said before Monday’s announcement.

Defense Minister Johnny Mercer said there were “clear injustices” in the system.

In Scotland, authorities quickly reversed course after a similar fiasco last week, saying students would get their predicted grades. That increased pressure on Johnson to do the same for England.

Johnson, who is on vacation, chaired a call on the crisis Monday with Education Secretary Gavin Williamson and senior officials.

Williamson had previously insisted that there would be “no U-turn,” though he said students who had been downgraded could appeal or retake the exams.

But on Monday he acknowledged that “the process of allocating grades has resulted in more significant inconsistencies than can be resolved through an appeals process”.

“I am sorry for the distress this has caused young people and their parents but hope this announcement will now provide the certainty and reassurance they deserve,” he said.