This article explores the research-backed benefits of inclusive learning environments for all children, including those without identified special educational needs.
The most defensible research-based message is this: high-quality preschool provides learning experiences that prepare children to be confident learners who are ready not just for primary education, but for life in diverse communities.
In early-childhood literature, the clearest benefits for the non-SEN children are social and emotional rather than dramatic academic gains. Studies and research syntheses consistently point to more positive attitudes toward disability, better emotion understanding, stronger prosocial behavior, greater acceptance of differences, and healthier peer relationships. At the same time, the evidence does not show that non-SEN children are academically harmed by being educated alongside children with disabilities in well-designed preschool settings. [1]
A leading review of a quarter century of early childhood inclusion research notes that evidence for benefits to typically developing children comes mainly from descriptive studies, not randomized experiments. The strongest claim is not “a child will become smarter because of inclusion,” but rather “a child can develop in a more empathetic, socially capable, and reality-based community without losing academic ground.” [2]
In early education research, the most repeated finding is that non-SEN children’s contact with peers with disabilities is associated with better attitudes toward difference. A research brief summarizing preschool inclusion studies reports that typically developing children in inclusive settings show more positive attitudes toward children with disabilities than children who do not regularly encounter such peers. The same review also highlights a study in which typically developing children with social contact with classmates with disabilities scored higher on measures of emotion understanding than children whose contact was only with other typically developing children. [3]
The evidence is not only about attitudes in the abstract. In a study of preschoolers in inclusive versus non-inclusive classes, children in inclusive classes showed significantly higher “helping strategy” scores and were rated by teachers as significantly more prosocial. In other words, the inclusive experience was linked not just to warmer beliefs, but to more developed ideas about helping others and more prosocial day-to-day behavior. That is especially valuable for parent communication because it translates to familiar outcomes: kindness, cooperation, and social maturity. [4]
Inclusive classrooms strengthen cognitive development by giving children daily opportunities to solve real social challenges together by building flexible thinking, problem-solving and the ability to support others in meaningful ways. Research shows that when children must explain, question, summarize, clarify, or otherwise make their thinking explicit for someone else, their own learning often improves [5]. More importantly, this does not require artificial activities or one-off experiences as it happens authentically through everyday interactions. This builds perspective-taking, reasoning and social problem-solving which are key cognitive skills for lifelong learning. Inclusion becomes a lived experience, not a planned lesson.
Later preschool studies point in the same direction. A qualitative study that followed three typically developing preschoolers in inclusive programs for a full school year found that all three children made social gains and improved their perceptions of peers with disabilities. Another study with 32 typically developing preschoolers found that more positive sociometric ratings of classmates with disabilities were linked to more associative and cooperative play with those classmates. A recent intervention study in inclusive preschools in Turkey found that the “Making Friends” program increased the social acceptance of typically developing children toward peers with special needs, which matters because it shows that inclusive values can be deliberately strengthened by school practice, not just left to chance. [6]
Put simply, the preschool-level evidence supports a claim that children without identified SEN often gain comfort with human difference, empathy, emotional insight, and prosocial habits in inclusive environments. Those are not “soft extras.” OECD and UNESCO both emphasize that early childhood settings are children’s first major social world outside the family, and that inclusion in early childhood is important for belonging, perceptions of others, social cohesion, and positive development. [7]
Parents often worry that if a preschool includes children who need more support, the rest of the class will receive less attention or weaker teaching. The preschool research does not support that fear when the setting is high quality. A study of 112 preschoolers with and without disabilities in 16 community-based inclusive preschool programs found that both groups showed similar behaviors and were meaningfully engaged in adult- and child-initiated activities in similar activity contexts, although children with disabilities received more adult support. That is an important finding for family messaging because it suggests that inclusion does not automatically mean that non-SEN children sit idle while teachers focus elsewhere. [8]
A second important study, on Tulsa’s high-quality pre-K program, found significant early literacy gains for children with special needs, and those gains were not statistically different from the gains of classmates without special needs. A review of early childhood inclusion research similarly summarizes that typically developing children make similar developmental gains in regular and inclusive preschools and remain actively engaged in classroom activities in inclusive settings. In parent language, that means inclusion in a strong preschool does not appear to “hold back” the other children. [9]
A conclusion of a high-quality inclusive setting is that the academic story is mostly neutral to mildly positive, while the social-emotional story is more clearly positive. A 2021 review of inclusion outcomes for students without disabilities across PreK–12 concluded that social effects are mainly reductions in fear, hostility, prejudice, and discrimination, along with increases in tolerance, acceptance, and understanding. On academics, that review found mostly positive or neutral effects in lower grades, with more mixed findings in later grades. A 2022 longitudinal PLOS One study likewise found that students without disabilities in inclusive settings showed academic achievement trajectories similar to those in non-inclusive settings. These broader studies are not preschool-only, but they reinforce the main preschool message: inclusion is not associated with a systematic academic “cost” to non-SEN children. [10]
Simply placing different children in the same building does not create magic. The literature is very clear that quality matters. The joint DEC/NAEYC position statement on early childhood inclusion defines high-quality inclusion through three features: access, participation, and supports. It says the desired results of inclusive experiences for children with and without disabilities include belonging, positive social relationships and friendships, and development and learning to reach full potential. The 2023 U.S. Departments of Education and Health and Human Services policy statement similarly emphasizes inclusive high-quality early childhood programs with individualized and appropriate support. [11]
The Odom, Buysse, and Soukakou review makes the same point in more practical terms. It states that specialized instruction is important, collaboration among adults is central, and adequate systems-level support is necessary. It also notes that early childhood programs can benefit all children, but that this does not happen automatically or without skilled design. More recent work on inclusive preschool classrooms shows that teachers see high-value strategies for emotionally responsive interactions, classroom management, attention to children’s perspectives, and scaffolding of learning as desirable, but often harder to implement without knowledge, coaching, and support. [12]
This quality point is important and supports the HEI + HEI Bridges model that’s based on strong support, training and intention. It’s clear from research that children benefit from inclusive preschool when the school is structured, well-staffed, and intentional about participation for everyone. High-quality inclusive preschools give parents confidence because teachers are intentionally trained and supported to understand diverse learning needs and styles of all children by using collaboration, observation, accommodations and thoughtful adaptations to ensure every child is meaningfully engaged and supported. [13]
HEI Schools describes its model as “one inclusive campus with two structured, yet flexible, pathways: the HEI Program and the HEI Bridges Program”, with flexible transitions and support that allows children to remain in a “authentic preschool experience” while receiving the level of structure they need. That is important because much of the better preschool-inclusion literature points toward the same design logic: children should have genuine access to ordinary peer life and learning opportunities, while individualized supports are embedded rather than bolted on later.
The fit with Finnish educational logic is also meaningful. Finland’s National Agency for Education describes ECEC as an integrated educare model that combines care, education, and teaching with a strong pedagogical emphasis. Finnish research also emphasizes multi-professional teamwork and collaborative support for children in ECEC. That is relevant because the inclusion literature repeatedly shows that the positive effects families care about are most likely when the school combines shared community with purposeful adult collaboration, rather than asking one classroom teacher to improvise alone. [14]
The important inference for HEI + HEI Bridges is this: a one-school, two-pathway model can be parent-persuasive precisely because it avoids the two biggest problems in the inclusion debate. It avoids segregation, because children are part of one school community. And it avoids unsupported “sink or swim” situations that can easily happen in not well-designed inclusive settings. In HEI+ HEI Bridges model support levels and pathway structures can be adjusted. That is not a direct causal finding from one published study; it is an inference from the broader research on high-quality preschool inclusion. This model reflects what research consistently points to as most effective: inclusion works best when it is intentionally designed with flexible levels of support, ensuring children are not only present in the same environment, but are meaningfully included in ways that match their individual needs.
Teacher training and mentoring is also encouraged to increase the quality of the inclusive early education [15] and that is why the HEI + HEI Bridges model provides strong ongoing pedagogical support, training and mentoring to the preschool staff.
The first key message the research proves is that when inclusion is designed and implemented well, children without special educational needs do not lose out, quite the contrary. They learn in a richer human environment. Research in preschool settings shows that children in inclusive programs often develop stronger empathy, better understanding of emotions, more accepting attitudes toward differences, and more prosocial helping behaviors. At the same time, high-quality inclusive preschool does not appear to reduce the academic or developmental progress of other children. When teachers deeply understand how children learn, they teach more effectively and research shows this leads to stronger cognitive, language and early academic development for all children. [16]
A second message related to the preparation for real life. OECD says early childhood settings are children’s first experience of social life beyond the family, and that these early encounters shape identity, belonging, and perceptions of others. UNESCO likewise frames inclusive early childhood education as an investment in emotional wellbeing and social cohesion. So the benefit to children is not only that they “learn to be nice.” It is that they practice living and learning in a community where people develop differently, communicate differently, and contribute differently. That is a life skill, a school skill, and increasingly a future-work skill. [17]
A well-designed inclusive preschool helps children without identified SEN grow up academically secure, socially mature, and more capable of understanding and relating to people who are different from themselves. The research base supports that statement, especially when the preschool provides structured support, trained adults, and genuine belonging for every child. [18] It also suggests that when children are supported to build empathy, social understanding and positive peer interactions early on, they are less likely to engage in exclusion or bullying behaviors later in school. [19]
We can conclude this article by saying that research proves that well-designed, high-quality inclusive schools benefit all children and help build more inclusive societies.
Cited research and articles:
Sharmila Lawrence Sheila Smith National Center for Children in Poverty Mailman School of Public Health, Columbia University & Rashida Banerjee University of Northern Colorado, Preschool Inclusion Key Findings from Research and Implications for Policy April 2016
https://files.eric.ed.gov/fulltext/ED579178.pdf
Samuel L. Odom, Virginia Buysse and Elena Soukakou , Perspectives Inclusion for Young Children With Disabilities : A Quarter Century of Research, Journal of Early Intervention 2011 33: 344 https://spede768.weebly.com/uploads/5/2/8/5/52850241/odom_et_al_2011_inclusion_article.pdf
Bethany Rittle-Johnson, Megan Saylor, Kathryn E. Swygert, Learning from explaining: Does it matter if mom is listening?, Journal of Experimental Child Psychology, Volume 100, Issue 3, 2008
https://www.sciencedirect.com/science/article/abs/pii/S002209650700135X
Noggle, A.K., Stites, M.L. Inclusion and Preschoolers Who Are Typically Developing: The Lived Experience. Early Childhood Educ J 46, 511–522 (2018).
https://link.springer.com/content/pdf/10.1007/s10643-017-0879-1.pdf
OECD (2025), Reducing Inequalities by Investing in Early Childhood Education and Care, Starting Strong, OECD Publishing, Paris
Brown, William H.; Odom, Samuel L.; Li, Shouming; Zercher, Craig, Ecobehavioral Assessment in Early Childhood Programs: A Portrait of Preschool Inclusion. Journal of Special Education, v33 n3 p138-53 Fall 1999
https://eric.ed.gov/?id=EJ597229
Phillips, Deborah A.; Meloy, Mary Em High-Quality School-Based Pre-K Can Boost Early Learning for Children with Special Needs,06/30/2012, Vol 78, Exceptional Children, the Council for Exceptional Children
Kart, Ayse, and Mehmet Kart. 2021. "Academic and Social Effects of Inclusion on Students without Disabilities: A Review of the Literature" Education Sciences 11, no. 1: 16.
https://www.mdpi.com/2227-7102/11/1/16
Early Childhood Inclusion, A Joint Position Statement of the Division for Early Childhood (DEC) and the National Association for the Education of Young Children (NAEYC), 2009
Finnish National Agency for Education
https://www.oph.fi/en/education-system/early-childhood-education-and-care-finland
Vital Voices for Vital Years 2 Perspectives on Early Childhood Development in Singapore Principal investigator, Lasse Lipponen | Co-principal investigators, Lynn Ang and Sirene Lim | Researchers, Jaakko Hilppö, Hongda Lin and Antti Rajala.
https://lienfoundation.org/wp-content/uploads/2024/10/Vital-Voices-for-Vital-Years2.pdf