Interviewees highlighted the importance of qualitative information, and the limitations of quantitative measures, to capture culture change in schools when evaluating the impact of the service.
Tynnodd y rhai a gafodd eu cyfweld sylw at bwysigrwydd gwybodaeth ansoddol, a chyfyngiadau mesurau meintiol, i ddal newid diwylliant mewn ysgolion wrth werthuso effaith y gwasanaeth.