The researchers concluded that ballot papers should be designed in a way that does not induce any undue electoral advantage to a particular party or candidate over another.
Casgliad yr ymchwilwyr oedd y dylid dylunio papurau pleidleisio mewn ffordd nad yw’n arwain at unrhyw fantais etholiadol ormodol i blaid neu ymgeisydd penodol dros un arall.