Canadian firm linked to last year’s grading errors will not be involved
Fernando Cartwright
Vast majority of students have formally applied for exams, accredited grades or both
‘In any scientific process, a correct result is produced through trial and error,’ says Polymetrika chief
Disclosure prompts calls for a full inquiry to establish if there are further errors
About 6,500 students awarded grades lower than they should have received, says Minister
Department of Education made payment to Canadian company without tendering process