Siân Gwenllian MS, Plaid Cymru's shadow education minister, said: "I'm calling on the Education Minister and this Welsh Government to learn from the chaos caused over A Level results when it comes to this week's GCSEs. That needs to be done sooner rather than later - waiting until Thursday is unacceptable and will cause more anxiety and uncertainty.
"Because of the increasing evidence of inconsistencies and anomalies, the Government should use the teachers’ assessments rather than a flawed algorithm. The First Minister is defending the indefensible and choosing to talk statistics rather than the life chances of the individuals affected."
Her message was echoed by a senior head teacher from Denbighshire. Geraint Parry, of Ysgol Brynhyfryd, said:
"It is deeply regrettable that here in Wales, leaders have not had the courage of their convictions to follow the outstanding example set in Scotland where young people have been put first. Trust and confidence in Welsh Government, Qualifications Wales and WJEC is now at an all-time low and I appeal to them to make decisive changes ahead of the GCSE results.”