O hyn allan, bydd dadansoddi a deall patrymau cyrhaeddiad ar lefel genedlaethol, gan Lywodraeth Cymru a phartneriaid eraill, yn rhan annatod o werthuso a gwella ysgolion ar bob agwedd ar y system, yn unol ag egwyddorion einCanllawiau Gwella Ysgolion.
Henceforth, the analysis and understanding of patterns in attainment at a national level, by the Welsh Government and other partners, will be an important contributor to system-level evaluation and improvement, in line with the principles of ourSchool Improvement Guidance.