“…In addition to the NICHD study, several other researchers both in and outside of the United States have investigated the association between the amount of child care and children's socio-emotional development. Some studies find similar associations with negative behavioural outcomes using diverse measures, such as the cumulative or average amount of child care between the onset of care and 36 months (Gialamas et al, 2015), and 60 months of age (Solheim, Wichstrøm, Belsky, & Berg-Nielsen, 2013), the average amount of hours at 2-3 years of age (Yamauchi & Leigh, 2011), the average amount of hours in pre-kindergarten (Loeb et al, 2007), and full-time centre care at 4 years (Coley, Votruba-Drzal, Miller, & Koury, 2013). However, several other studies found no relation with extensive time in child care or preschool and children's negative behavioural outcomes in the early years (Barnes, Leach, Malmberg, Stein, & Sylva, 2010;Romano, Kohen, & Findlay, 2010;Votruba-Drzal, Coley, Maldonado-Carren, Li-Grining, & Chase-Lansdale, 2010;Zachrisson, Janson, & Naerde, 2013b).…”