The recruitment process used to identify businesses for the sample revealed that a small minority of businesses who did not use RoO were prevented from doing so due to a lack of knowledge.
Datgelodd y broses recriwtio a ddefnyddiwyd i nodi busnesau ar gyfer y sampl fod nifer fach o fusnesau nad oeddent yn defnyddio RhT wedi eu rhwystro rhag gwneud hynny oherwydd diffyg gwybodaeth.