Staff who are better qualified and trained maintain the quality of state-funded preschools, to some extent making up for the larger number of children per staff member in comparison to private and voluntary settings. A comparison of data before and after substantial UK policy change between 1999 and 2014, aimed at increasing uptake and improving the quality of early years education and care, suggests such changes could have powerful effects in improving preschool settings.
Source: Science Daily, https://www.sciencedaily.com