Tra bod polisïau yn cael eu trafod ar led gyda nifer o rhanddeiliaid mae yna nifer o feysydd polisi lle mae yna ychydig iawn o dystiolaeth annibynol i’w gael ar farn y gweithlu addysg ar faterion allweddol. Mae arolygon yn cael eu rhedeg gan sefydliadau eraill yn aml ar faterion megus llwyth gwaith. Er hynny, yn aml mae’r data llawn ar sail Lloegr a Chymru a ni chyhoeddir y data gwaelodol llawn.
Whilst education policies are discussed widely with a number of stakeholders there are a number of policy areas where there is currently little independent evidence as to the views of the education workforce on key issues. Surveys are regularly carried out by other organisations on issues such as workload however the full data is often on an England and Wales basis and the full underlying data is not published.