1. 2001
2. Aspects of gender mutation in Welsh

   Thomas, E. M. (Author), Jan 2001

   Student thesis: Doctor of Philosophy

3. 2010
4. Semantic categorisation of actions and objects in monolingual and bilingual children

   Tomos, H. (Author), Gathercole, V. (Supervisor) & Thomas, E. (Supervisor), Sept 2010

   Student thesis: Doctor of Philosophy

5. 2012
6. Irish medium education : cognitive skills, linguistic skills, and attitudes towards Irish

   Kennedy, I. (Author), Thomas, E. (Supervisor), Jan 2012

   Student thesis: Doctor of Philosophy

7. 2015
8. The literacy and self-esteem of children attending Welsh-Medium and English-Medium schools in Wales

   Young, N. (Author), Thomas, E. (Supervisor), 28 Aug 2015

   Student thesis: Doctor of Philosophy

9. 2016
10. An exploration of mentoring among Indian School teacher: A mixed-method study

    Arora, G. (Author), Buckley, C. (Supervisor) & Thomas, E. (Supervisor), Jan 2016

    Student thesis: Doctor of Philosophy

11. Caffaeliad Plant Ifanc Dwyieithog o’r System Ateb yn y Gymraeg

    Lloyd-Williams, S. (Author), Thomas, E. (Supervisor), Jan 2016

    Student thesis: Doctor of Philosophy

12. Cynyddu amlygiad plant i'r Gymraeg: Dylanwad rhaglenni cyw ar ddatblygiad geirfa plant a'u hadnabyddiaeth o reolau cystrawennol

    Williams, N. (Author), Thomas, E. (Supervisor), Jan 2016

    Student thesis: Doctor of Philosophy

13. Evaluating Trilingual Language Teacher Training Programmes for Minority Dominated Regions in Xinjiang: Current practice and Challenges

    Zhang, P. (Author), Thomas, E. (Supervisor) & Feng, A. (Supervisor), Jan 2016

    Student thesis: Doctor of Philosophy

14. 2017
15. Investigating the Bilingual ‘Catch-up’ in Welsh-English Bilingual Teenagers

    Binks, H. (Author), Thomas, E. (Supervisor), 2017

    Student thesis: Doctor of Philosophy

16. Ymchwilio Addysg Ddwyieithog yn Ysgolion Cymru: Amrywiaeth Caleidosgopig

    Jones, B. (Author), Thomas, E. (Supervisor), 2017

    Student thesis: Doctor of Philosophy

17. 2020
18. Psychoeducational learning: a qualitative study

    Griffith, E. (Author), Young, N. (Supervisor) & Thomas, E. (Supervisor), 6 Jul 2020

    Student thesis: Professional Doctorates

19. Profiling the Language Abilities of Welsh-English Bilingual Children with Down Syndrome

    Ward, R. (Author), Sanoudaki, E. (Supervisor) & Thomas, E. (Supervisor), 11 Aug 2020

    Student thesis: Doctor of Philosophy

20. 2021
21. An evaluation of the effectiveness of Cymraeg bob dydd across the curriculum in English-Medium schools in North Wales

    Parry, N. (Author), Thomas, E. (Supervisor) & Young, N. (Supervisor), 9 Feb 2021

    Student thesis: Doctor of Philosophy

22. An Exploration of the potential markers of literacy difficulties in Welsh-English Bilinguals

    Owen, C. (Author), Thomas, E. (Supervisor), 24 Sept 2021

    Student thesis: Doctor of Philosophy

23. Language and Executive Functioning Skills in Greek-English Bilingual Children in the U.K.

    Papastergiou, A. (Author), Sanoudaki, E. (Supervisor), Thomas, E. (Supervisor), Tamburelli, M. (Supervisor) & Chondrogianni, V. (Supervisor), 4 Oct 2021

    Student thesis: Doctor of Philosophy

24. 2022
25. Oes modd ail-greu rhyngweithio dosbarth cyfathrebol Cymraeg i Oedolion drwy ddulliau digidol i gefnogi cywirdeb ac ynganiad iaith dysgwyr ar lefel dechreuwyr cwrs Mynediad (A1)?

    Jones, L. (Author), Thomas, E. (Supervisor) & Cooper, S. (Supervisor), 17 Nov 2022

    Student thesis: Doctor of Philosophy