All statistical and research work will be undertaken in a manner that includes checks being carried out to make sure that identities are not revealed by the results of the analysis.
Cynhelir yr holl waith ystadegol ac ymchwil mewn ffordd sy’n cynnwys cynnal gwiriadau i sicrhau nad oes modd adnabod unigolion o ganlyniadau unrhyw ddadansoddiad.