The survey was undertaken in February 2004 and is based on the responses of over 5,700 questionnaires and the views from 12 focus groups in 8 schools.
Cynhaliwyd yr arolwg ym mis Chwefror 2004 a chaiff ei seilio ar yr ymatebion a gafwyd mewn mwy na 5,700 o holiaduron ynghyd â sylwadau barn 12 grŵp ffocws mewn 8 ysgol.