Please see the National Survey for Wales quality report for further information on the strengths and limitations of the survey and the research report Sense of community.
Gweler adroddiad ansawdd arolwg cenedlaethol Cymru i gael rhagor o wybodaeth am gryfderau a chyfyngiadau'r arolwg a'r adroddiad ymchwil “ Ymdeimlad o gymuned ”.