RW explained how PiP estimate means-tested benefits as it is more reliable and easier to do as there is an element of subjectivity in many health-related benefits.
Esboniodd RW sut mae PiP yn amcangyfrif budd-daliadau ar sail prawf modd am ei fod yn fwy dibynadwy ac yn haws i'w wneud gan fod elfen o oddrychedd mewn llawer o fudd-daliadau cysylltiedig ag iechyd.