Background As a part of its welfare system, Norway provides universal access to early childhood education and care (ECEC) for all children between the ages of 1 and 5. To provide this access, Norway has undergone considerable structural changes in recent decades (Vassenden et al. 2011). These changes began with the 2003 ECEC settlement, which required municipalities to offer all children a place in ECEC. In 2009, access to a place in an ECEC programme became a legal right for all children. The overall purpose of these settlement initiatives and the establishment of universal access to ECEC was to ensure social equality and secure a good start for all children (Haug and Storø 2013). To meet heightened demand, new and larger ECEC settings were built, group sizes were expanded, the number of children under the age of three attending ECEC settings increased and a new type of organisation, flexible groups was formed (Gulbrandsen and Eliassen 2013). Most of the changes were related to quantity; however, in recent years, quality has appeared more systematically on policy-makers' agendas, especially for infants and toddlers (OECD 2015; Vassenden et al. 2011). The quality aspects of ECEC are related to children's experiences in ECEC institutions, such as their involvement in interactions and activities that are assumed to be beneficial for their learning and development (Sylva et al. 2006; Thomason and La Paro 2009). The concept of quality in ECEC is multifaceted, although the general consensus is that