Adults and children and young people aged three or older selected for the Welsh Language Use Survey were asked about their use of Welsh in social situations.
Gofynnwyd i’r oedolion a’r plant a’r bobl ifanc tair oed neu hŷn, a gafodd eu dewis ar gyfer yr Arolwg Defnydd Iaith am eu defnydd o'r Gymraeg mewn sefyllfaoedd cymdeithasol.