And this gives us a baseline, over time, to understand how covid has affected those learners’ progression, and how this is impacted by other characteristics like deprivation.
Ac mae hyn yn rhoi gwaelodlin inni, dros amser, i ddeall sut mae covid wedi effeithio ar gynnydd y dysgwyr hynny, a sut mae nodweddion eraill fel amddifadedd yn effeithio ar hyn.