Dr Sian Wynn Lloyd-Williams


Dr Sian Wynn Lloyd-Williams

Undergraduate Lecturer

Contact Details

Please note: The Welsh version of this profile contains additional or more detailed information.


Siân completed her first degree In Communication at Bangor University in 2001 and spent the next few years working in the media industry. She returned to Bangor University in 2004 and graduated in 2007 in Psychology with Child and Language Development. She completed an MA in Linguistics at Bangor University in 2008 whilst working as an assistant researcher at the ESRC Centre for Research on Bilingualism in Theory and Practice with the Corpus-based research group where she's also a research fellow. She went on to undertake a PhD at the department of education and Lifelong Learning at Bangor University, where she also undertook various lecturing responsibilities. Her doctoral research looks at 'The effect of language input on Welsh/English bilingual children's use of the Welsh Answering System'. Siân started her current lecturing position in the department of Education and Lifelong Learning at Aberystwyth University in September 2012.



Siân's personal research includes aspects relating to bilingualsim and multilingualism, language acquisition, dyslexia, assessment, code-switching and language maintenance.

Her present research looks at how bilingual English / Welsh children acquire complex structures in a minority language such as Welsh. In particular she's looking at the Welsh answering system, a complex system where children are required to learn and use system that includes echo and non-echo forms. In addition, the research highlights the need for structured assessments / test intervention / support resources to promote Welsh / English children's use of complex systems accurately and effectively.

Office Hours (Student Contact Times)

  • Thursday 2:00-5:00


Bilingual acquisition of opaque structures in Welsh: the case of the Welsh answering systemLloyd-Williams, S. & Thomas, E. M. 2012 p. PS116
"How do I answer thee? Let me count the ways!": bilingual acquisition of the multiple forms of the yes / no answering system in WelshLloyd-Williams, S. W. & Thomas, E. M. 2012
Do, oes, gwnaf, ia, wyt...? Adnabod yr angen i addysgu’r ffurfiau niferus o ‘ie’ a ‘na’ yn Gymraeg yn yr ysgol gynraddLloyd-Williams, S. W. & Thomas, E. 2012
Do, oes, gwnaf, ia, wyt...? Bilingual acquisition of the multiple forms of the ‘yes’/ ‘no’ answering system in WelshLloyd-Williams, S. W. & Thomas, E. 2012
Bilingualism in Wales: Bangor Centre for Research on BilingualismDeuchar, M., Lloyd-Williams, S. W. & Parafita, M. C. 2008 In : Interpret Wales.9, p. 151 p.
Developing Language-appropriate task items for identifying literacy difficulties in Welsh-speaking childrenThomas, E. M. & Lloyd-Williams, S. W. 2008 In : Dyslexia Review.20, 1, p. 4-96 p.
Dwyieithrwydd yng Nghymru: Canolfan dros Ymchwil i Ddwyieithrwydd BangorDeuchar, M., Lloyd-Williams, S. W. & Parafita, M. C. 2008 In : Dehongli Cymru.9, p. 14-152 p.