work with the School Health Research Network (SHRN) to maximise the longitudinal data provided by the biennial Student Health and Well–being Survey.
Cymharu canfyddiadau arolwg Iechyd a Llesiant Myfyrwyr y Rhwydwaith Ymchwil Iechyd mewn Ysgolion 2019 a 2021 (Rhwydwaith Ymchwil Iechyd Myfyrwyr)