Professor in Education Research, Bangor University.

Professor Thomas, one of the early and influential founders of Welsh medium teaching in Higher Education, is Associate Pro-Vice Chancellor for Welsh at Bangor University. Her main research interests and expertise include psycholinguistic approaches to the study of bilingual language acquisition, bilingual assessment, and education approaches to language transmission, acquisition and use. Aspects of her work have had a direct impact on language policy in education and procedures to promote Welsh language use amongst children.