Achievement rates for vocational outcomes, apprenticeships and adult learning are calculated by the Welsh Government; there are a number of general education achievement outcomes.
Mae cyfraddau cyflawni deilliannau galwedigaethol, prentisiaethau a dysgu oedolion yn cael eu cyfrifo gan Lywodraeth Cymru; mae nifer o ddeilliannau cyflawniad addysg gyffredinol.