Reflections
Quality in early childhood education and care (ECEC) is a multifaceted and context-dependent concept that cannot be reduced to simple indicators. The three-dimensional framework outlined above forms an analytical framework that explains both how quality emerges and how it can be developed. Structure and system conditions enable process quality, which in turn has a direct impact on children’s development and well-being.
With regard to the equalising effect of ECEC, there is broad agreement that high-quality settings are particularly important for children from low-income families and minority backgrounds. Studies such as Perry Preschool, Head Start, and Boston Universal Preschool show that children attending high-quality ECEC are more likely to complete upper secondary school, pursue higher education, and achieve stable employment (Schweinhart, 2005; Gray-Lobe et al., 2021). In Nordic contexts such as Denmark and Norway, the effects are more moderate, but the distributional impacts seem to be clear (Gupta & Simonsen, 2009; Drange & Telle, 2015).
We can therefore conclude that the socially equalising potential of ECEC is well documented, but this effect is conditional on quality. Low-quality ECEC may have limited or no positive impact, and in some cases may even be counterproductive. It is thus crucial that all three quality dimensions are present and work together.
At the same time, we must recognise that quality does not emerge automatically. It must be built through intentional pedagogical practice, professional competence, and systematic effort, especially in areas with low participation and high vulnerability. Quality should not become a control mechanism, but a tool for development that is grounded in children’s rights, strengths, and needs. Ultimately, it is about creating ECEC settings that not only measure quality but enact it in every interaction with every child.
Developments in the field
Research on ECEC quality has expanded substantially over the past decades, both in scope and methodological sophistication. Two key trends currently distinguish the research frontier.
First, recent meta-analyses and longitudinal studies have reaffirmed the centrality of process quality. Methodologically, this has pushed the field towards more frequent use of observational tools such as CLASS (classroom assessment scoring system). Analytically, it has shifted the focus from asking whether ECEC matters, to asking which aspects of everyday practice matter most for which children. This opens up new possibilities for practice-based improvement but also risks narrowing the notion of quality to what is easily measurable within standardised instruments.
Second, increasing attention is being directed towards the role of ECEC as a socially equalising intervention. Although the average effects of ECEC participation may be moderate in high-income countries with already high baseline quality, several studies show that children from low-income families and minority backgrounds benefit disproportionately from high-quality ECEC (Gupta & Simonsen, 2009; Drange & Telle, 2015). At the same time, research underscores that the effects are conditional on quality, and that low-quality ECEC may have limited or even negative effects.
Summary
ECEC is a central universal welfare provision with substantial potential to promote children’s development and counteract social inequality. Research shows that high-quality ECEC has particularly positive effects for children from low-income families and minority backgrounds, and can contribute to improved school performance, better health, and enhanced life chances in the long term.
Taken together, the evidence reviewed in this section suggests three key points. First, high-quality ECEC is one of the most promising universal measures for improving the life chances of children growing up in low-income families, particularly when process quality is strong. Second, structural and system-level arrangements only contribute to social equity when they effectively enable such high-quality everyday interactions. Third, large-scale quality initiatives such as ‘TETT PÅ’ illustrate that it is possible to work systematically with all three dimensions at once – but also that this requires long-term political commitment, professional leadership, and sustained investment.
3.3 Measures in schools
Introduction
School and education have long been regarded as among the most important instruments for promoting social mobility and reducing poverty (OECD, 2012; Holmlund & Nybom, 2023). The education system has the potential to function as a social equaliser by providing children from different social backgrounds with equal opportunities to acquire the knowledge and skills necessary for further education and participation in the labour market. Research also shows that children from families with low socioeconomic status consistently have lower learning outcomes and weaker school performance than children from more advantaged homes (Cooper & Stewart, 2021; Holmlund & Nybom, 2023; Expert Group, 2024).
Despite being viewed as instruments of social equalisation, schools and educational systems may also reinforce rather than eliminate inequality. This may be linked to the fact that children from low-income families encounter more structural and pedagogical barriers at school, and that schools often fail to compensate for differences in home environments and access to resources (Sandsør et al., 2023; Expert Group, 2024). Empirical research also indicates that disparities in educational achievement between children from different social strata emerge at an early stage and tend to intensify throughout the schooling trajectory (Holmlund & Nybom, 2023; Cooper & Stewart, 2021).
At the same time, research emphasises that it is not schooling itself, but rather how the school is structured and equipped with compensatory measures that determines whether it contributes to reducing or reinforcing social inequalities (OECD, 2018; Holmlund & Nybom, 2023). For example, studies show that measures such as reduced class size, targeted tutoring, and strengthened social and emotional learning have particularly large effects for students from low-income families (Dietrichson et al., 2017; Nickow et al., 2020; Expert Group, 2024).
The school thus appears as a double-edged sword: it can both reproduce inequality and help counteract it. The critical question is therefore what actually has an equalising effect. We can distinguish between three main categories of measures aimed at compensating for social inequality in schools: structural measures, pedagogical measures, and socially supportive measures.
Structural measures encompass organisational and financial arrangements within the school system. This also includes the universal and comprehensive school, which in itself has an equalising effect by limiting early stratification and reducing the influence of family background on educational outcomes (Aakvik et al., 2010; Meghir & Palme, 2005; Pekkarinen et al., 2009). Beyond this universal structure, structural factors such as overall funding levels, teacher capacity, resources for additional instruction and teachers’ qualifications shape schools’ ability to provide equal opportunities (Holmlund & Nybom, 2023). Other complementary structural measures include free and integrated after-school programmes, which provide access to learning support and social environments, and free school meals, both of which can reduce socioeconomic barriers to participation and learning (Cohen et al., 2021; Expert Group, 2024; Olgacher, 2025).
Pedagogical measures target the content and methods of teaching and aim to strengthen students’ academic development, both within and beyond the classroom. In Frønes et al. (2020), with data from Nordic countries, findings emphasise the importance of the teacher’s role, instructional quality, and classroom discipline. Research has also shown that pedagogical approaches that combine play and learning are particularly effective for children with weak academic foundations (Expert Group, 2024). This category also includes measures such as free homework support, which provides accessible academic assistance after school for students who do not receive such support at home.
Socially supportive measures aim to strengthen students’ psychosocial development and well-being, and to compensate for differences in home environments. A central measure here is social and emotional learning, which involves systematic work on students’ social skills, self-regulation, and relationships. Social and emotional learning has been shown to improve both well-being and the learning environment (Wigelsworth et al., 2022). Another measure is the ‘enhanced team around the student’, consisting of interdisciplinary teams of teachers, social workers, school nurses, and child welfare/mental health professionals who support students with complex needs (Expert Group, 2024).
A substantial body of empirical research demonstrates that the effects of specific, measurable interventions vary. However, studies emphasise that individual measures tend to have a limited impact on isolation. What matters most is the combined effect of multiple, coordinated interventions (Dietrichson et al., 2017; OECD, 2018).
Whole school approach
A whole school approach (WSA) is best understood not as a specific programme, but as a design logic for school development. Rather than adding isolated projects on top of everyday practice, a WSA seeks to align the school’s core functions – teaching and learning, pastoral care, leadership, organisation, and partnerships with families and communities – around a shared set of goals and values. In doing so, a WSA may encompass and integrate all the three main categories of measures aimed at compensating for social inequality in schools (structural, pedagogical, and socially supportive measures). In this sense, a WSA differs from stand-alone interventions by targeting the conditions under which teaching and learning take place, not only the activities themselves.
A review of the literature shows that WSA is based on at least three fundamental principles that appear to be at the core of the models that are most likely to reduce inequality and to support vulnerable student groups (Haworth et al., 2015; Cavanagh et al., 2024; Zhou et al., 2025).
First, they are multi-level. It means that interventions are designed to interact across the classroom, the whole school organisation, and the wider community. For example, a focus on students’ social and emotional learning may be reflected simultaneously in classroom pedagogy, staff development, school policies, and collaboration with external services.
Second, WSA models combine universal, selective, and indicated measures in line with the principle of proportionate universalism. That is, all students are offered supportive environments and learning opportunities, while additional intensity and tailored support are provided to those facing greater adversity. In practice, this means that whole-school initiatives such as anti-bullying work or social and emotional learning are complemented by targeted group programmes and individual follow-up for students with more complex needs.
Third, WSAs are explicitly value-driven and relational. Core values such as inclusion, social justice, participation, and respect are not only stated in policy documents, but are expected to be part of daily relationships in the school. Research on health-promoting and community-oriented schools highlights school belonging and trust between students, staff, and families as central mechanisms that strengthen resilience and mitigate the risks associated with poverty and other stressors.
Within this broad framework, WSA models vary in both their substantive focus and degree of formalisation. Some emphasise particular domains, such as health and well-being, as in the whole school, whole community, whole child approach (WSCC). Others concentrate on mental health and social inclusion, as does, for example, the network of experts on the social dimension of education and training (NESET). There are also approaches that lean on sustainability and democratic participation, or academic improvement in low socioeconomic contexts (Lewallen et al., 2014; Cefai et al., 2021; Mathie & Wals, 2023; Lo, 2020). At the same time, models differ in structure: some, like WSCC, are organised around clearly defined and fixed components, while others adopt more flexible, context-dependent designs. UNESCO’s global citizenship education model (GCED), for example, specifies overarching values and organisational principles, leaving the choice of concrete measures open to local adaptation. Nevertheless, WSA models share a common logic of reorganising the whole school around coherent goals, values, and practices, and often integrate multiple domains in practice.
A whole school approach does not rest on a single, unified theory, but can best be understood as an umbrella approach drawing on several complementary theoretical traditions. A central point of reference is provided by systemic and ecological perspectives, most notably Bronfenbrenner’s bioecological model of development, which conceptualises children’s learning and well-being as shaped by interactions across multiple levels, from the immediate classroom environment to institutional, community, and policy contexts (Bronfenbrenner, 1979; Rosa & Tudge 2013). This perspective is closely aligned with the WHO framework for health-promoting schools, which similarly emphasises that educational outcomes are produced through the interaction of school organisation, relationships, curriculum, and the wider social environment (Langford et al., 2016).
The relational and pedagogical dimensions of WSA are further informed by theories of social and emotional learning and sociocultural learning. A central reference is the collaborative for academic, social, and emotional learning (CASEL) (Frye et al., 2024; Wigelsworth et al., 2024). This framework defines social and emotional learning as a set of five core competence domains: self-awareness, self-management, social awareness, relationship skills, and responsible decision-making. These ideas also resonate with sociocultural theories of learning, which stress that learning is socially mediated, culturally situated, and dependent on participation in meaningful practices (Vygotsky, 1978).
It can also be argued that WSA is grounded in theories of learning organisations and implementation science, which highlight how change depends on leadership, professional learning communities, and iterative implementation cycles.
All in all, WSA can be seen as grounded in a multi-layered theoretical foundation rather than a single explanatory model. Despite this diversity, the literature consistently points to three core ideas: schools should be understood as complex systems; universal and targeted measures need to be integrated across organisational levels; and meaningful participation by students, staff, families, and communities is essential for promoting equity, learning, and well-being.
Existing evaluations of WSA models report a range of outcomes related to students’ well-being, school climate, and academic achievement. However, most evaluations have been conducted outside the Nordic countries, and the findings are not uniform. While some studies report positive effects in specific domains, others find no or limited effects.
Nevertheless, several studies offer relevant insights and suggest that WSA may be a promising approach in Nordic contexts as well. In Denmark, an evaluation of the WSA initiative ‘Up’ found improvements in students’ social and emotional competencies, increasing from 33% before to 41% after implementation (Nielsen et al., 2015). A similar WSA implemented in a marginalised area in the Netherlands showed improvements in students’ quality of life during the intervention period, although these gains diminished once the programme ended (Elsenburg et al., 2023). According to the authors, this indicates that WSA initiatives require sustained implementation to maintain effects. A third study, from Australia, stands out for using a quasi-experimental design (Balasooriya Lekamge et al., 2025). Building on the WHO framework for health-promoting schools, the model showed clear improvements in student satisfaction, mastery, and mental health, particularly in schools that had implemented the model for the longest period (six years).
Several review studies conclude that whole school approaches are promising, although the empirical evidence remains mixed (Goldberg et al., 2019; Cabral-Gouveia et al., 2023; Haataja et al., 2025). However, reviewing the literature, Zhou et al. (2025) argue that WSA has clear potential to reduce social inequality, but emphasise the need for more robust effect studies. Overall, existing evaluations suggest that WSA models can have positive effects on students’ mental health, social and emotional competencies, school climate, and academic achievement. Across studies, early intervention and coordinated support emerge as key conditions for achieving these outcomes.