If respondents needed to complete the survey in more than one sitting (or more than one person needed to fill in the survey), they could do so by re-entering their access code.
Os oedd angen i’r ymatebwyr lenwi’r arolwg mewn mwy nag un eisteddiad (neu fod angen i fwy nag un person lenwi’r arolwg), gallent wneud hynny drwy roi eu cod mynediad eto.