source: In preparing this strategy, we have considered what evidence exists to measure the effectiveness of the activities undertaken by the Welsh Government, the Board and its partners over the years, in terms of increasing the use of Welsh. 
target: Wrth baratoi’r strategaeth hon, rydym wedi ystyried pa dystiolaeth sy’n bodoli i fesur effeithiolrwydd gweithgareddau Llywodraeth Cymru, y Bwrdd a’i bartneriaid dros y blynyddoedd o safbwynt cynyddu’r defnydd o’r Gymraeg. 