“…Moreover, higher caregiver sensitivity was found to be related to a higher number of adults in the classroom (Goelman et al, 2006). International professional recommendations for ECEC for infants under the age of 12 months include a group size of 6 and provider-child ratio of Regarding staff qualifications, caregiver formal education has been one of the most important mechanisms used to increase child care quality (Burchinal, Cryer, Clifford, & Howes, 2002;Norris, 2010;Shin, 2015) although the evidence to link more college credits to better quality is mixed (Pianta, Hamre, & Downer, 2011). Associations between a higher level of teacher formal education and global quality in ECEC have been found in some studies (e.g., NICHD Early Child Care Research Network, 1996;Phillips et al, 2000;Phillipsen et al, 1997), though not in others (e.g., Early et al, 2007;van IJzendoorn, Taveccio, Stams, Verhoeven, & Reiling, 1998).…”