Mae'r cynnwys hwn ar gael yn Saesneg yn unig.
Dr Rhian Barrance talks on BBC Radio Cymru and BBC Radio Wales about new research findings from her work with the Children’s Commissioner for Wales on the impact of national tests on children in Wales.
BBC Radio Cymru, ‘Post Cyntaf’, 8am, 09/05/19: https://www.bbc.co.uk/programmes/m0004rn5
BBC Radio Wales, ‘Good Evening Wales’, 5pm, 09/05/19: https://www.bbc.co.uk/sounds/play/live:bbc_radio_wales_fm