Ym mis Hydref 2021, penodwyd Miller Research UK i gynnal gwerthusiad manwl o’r Rhaglen Recriwtio, Adfer a Chodi Safonau a Rhaglen y Blynyddoedd Cynnar.  Roedd y gwerthusiad yn archwilio’r ffordd y mae ysgolion a lleoliadau blynyddoedd cynnar wedi defnyddio’u cyllid, yr effaith y mae'r cyllid wedi'i chael, ac yn parhau i'w chael, ar blant a phobl ifanc, a'r dulliau gweithredu sy'n profi i fod y rhai mwyaf effeithiol a chynaliadwy.
In October 2021, Miller Research UK were appointed to undertake an in-depth evaluation of the RRRS and Early Years programmes.  The evaluation explored how schools and early years settings have used their funding, the impact the funding has had, and continues to have, on children and young people and the approaches s that are proving to be the most effective and sustainable.