The key challenge the evaluation highlighted is that some schools struggled to get parents to turn up — only around one - third of eligible parents attended at least one session. (educationbusinessuk.net)
Although pupils whose parents came to sessions apparently made as much as two months of additional reading progress, only one third of eligible parents attended. (schoolsweek.co.uk)
Participation rates of eligible parents varied by center and averaged 58 %. (academic.oup.com)