Cognitive testing and piloting was not undertaken for year two of the TSW although the Outline of survey content section, details some testing undertaken on new questions included for 2019.
Yn rhan o Arolwg 2019, dim ond i draean o sampl gyffredinol yr Arolwg y gofynnwyd y cwestiwn ynghylch buddsoddi mewn ymchwil a datblygu.