Centre assessed grades were decided using the teacher’s best professional estimate of what the pupil would achieve had they been able to sit an exam.
Penderfynwyd ar raddau a aseswyd gan ganolfannau gan ddefnyddio amcangyfrif proffesiynol gorau'r athro o'r hyn y byddai'r disgybl yn ei gyflawni pe bai wedi gallu sefyll arholiad.