Although Welsh Government advertised the parent survey via social media, it was the responsibility of local authorities to distribute and promote the survey once it went live.
Er bod Llywodraeth Cymru wedi hysbysebu’r arolwg rhieni ar y cyfryngau cymdeithasol, cyfrifoldeb awdurdodau lleol oedd dosbarthu a hyrwyddo’r arolwg ar ôl iddo gael ei lansio.