A quarter (25%) similarly reported that they were in a role that required a higher level of qualification and 41% reported that their levels of responsibility had increased.
Dywedodd chwarter (25%) yn yr un modd eu bod mewn rôl a oedd yn gofyn am lefel uwch o gymhwyster a dywedodd 41% fod eu lefelau cyfrifoldeb wedi cynyddu.