This paper investigates the methodological discrepancies underlying the measurement of adult learning and education (ALE) participation in the UK by focusing on four major surveys -- APiL, PIAAC, AES, and LFS. Grounded in the Total Survey Error (TSE) framework, we systematically examined the surveys' documentation and compared their definitions,…

Background: Group-based parent programmes demonstrate positive benefits for adult and child mental health, and child behaviour outcomes. Greater fidelity to the programme delivery model equates to better outcomes for families attending, however, fidelity is typically self-monitored using programme specific checklists. Self-completed measures are…

Non-formal adult education (NFE) provides adults of all ages with the opportunity to acquire skills, knowledge, and expertise. However, there is currently a lack of validated instruments that measure the factors of NFE non-participation in European countries, particularly their barriers. One exception is the Non-participation in Non-formal…