The study was undertaken as part of a four-month PhD internship organised through the Economic and Social Research Council (ESRC) Wales Doctoral Training Partnership and the Welsh Government.
Cynhaliwyd yr astudiaeth fel rhan o interniaeth PhD pedwar mis a drefnwyd drwy Bartneriaeth Hyfforddiant Doethurol Cymru y Cyngor Ymchwil Economaidd a Chymdeithasol (ESRC) a Llywodraeth Cymru.