Scientists Map the Hidden Social Worlds of Preschool Classrooms

Every preschool classroom has its invisible architecture: clusters of children who are constantly sought out as playmates, others who drift along comfortably in the middle of the social spectrum, and a small number who are actively avoided. For decades, researchers have treated these patterns as a continuum, sorting children with simple cutoff scores. A new study published in the Early Childhood Education Journal argues that this approach misses something fundamental. By applying a statistical technique known as latent profile analysis to data from 361 Korean children aged four to five, Soohyeon Kang and Nary Shin of Chungbuk National University identified three distinct peer relationship profiles: popular, rejected, and average. The finding reframes early social life not as a smooth slope but as a set of separable social worlds, each with its own origins in the child.

The study’s methodological core is the combination of classic sociometry with modern mixture modeling. In traditional sociometric research, children are asked whom they like most and whom they like least among their classmates, and these nominations are converted into standardized scores for peer acceptance, peer rejection, social preference, and social impact. Kang and Shin fed these four dimensions simultaneously into a latent profile analysis, a technique that searches for hidden subgroups of individuals who share similar patterns across multiple continuous variables. Rather than asking researchers to impose arbitrary thresholds, the method lets the data themselves reveal how many meaningful groups exist and where their boundaries lie. The analysis converged on a three-profile solution that closely mirrors the classical categories of popular, rejected, and average, but derives them empirically rather than by rule.

What elevates the study beyond a descriptive exercise is its second question: what predicts membership in each profile? The researchers drew on three domains that developmental science has long flagged as influential in early social competence. The first is temperament, assessed through the preschool version of Cloninger’s Temperament and Character Inventory, which captures traits such as harm avoidance and reward dependence. The second is executive functioning, the family of self-regulatory abilities that includes inhibition, working memory, and attentional flexibility, measured with the Early Years Toolbox. The third is the quality of the teacher-child relationship, evaluated with the Student-Teacher Relationship Scale, which distinguishes warm, close bonds from relationships marked by conflict and dependency.

The predictive findings are striking in their nuance. Children with low temperamental harm avoidance, low reward dependence, and low behavioral inhibition were more likely to fall into the rejected profile. At first glance this seems counterintuitive; bold, uninhibited children might be expected to charm their peers. The authors’ interpretation is that in the preschool years, a lack of inhibition combined with low wariness can translate into behaviors that classmates find aversive: grabbing toys, interrupting, ignoring social cues, or dominating play. Harm avoidance, often framed negatively in adult personality research, may serve a protective function in early childhood, helping children pause before actions that alienate others.

Equally intriguing is the finding about reward dependence, the temperament dimension reflecting sensitivity to social approval and reinforcement. Children with moderate levels of reward dependence were more likely to belong to the popular profile than children with very high levels. This suggests that an intense hunger for social reward, although it can motivate engagement, may also make a child appear clingy, overeager, or socially demanding to four- and five-year-old peers who are still learning the give-and-take of friendship. Moderate reward dependence, by contrast, appears to hit a developmental sweet spot: enough motivation to seek out and maintain interaction, without the intensity that overwhelms playmates.

The teacher-child relationship emerged as a second powerful predictor, and here the direction of effects is especially consequential for practice. Children in less close teacher relationships were more likely to be rejected by peers, while children with less conflictual teacher relationships were more likely to be popular. This pattern aligns with a growing body of longitudinal work showing that teachers function as social gatekeepers in early classrooms. A warm teacher-child bond can signal a child’s value to the group, while visible conflict between teacher and child may license peer disliking. The authors frame this within Bronfenbrenner’s bioecological model, in which proximal relationships between the child and the adults around them shape development nested within ever-wider systems of influence.

The theoretical stakes of the study extend to how educators understand risk. Peer rejection in early childhood is not a trivial matter of playground politics. Meta-analytic evidence links peer acceptance to academic achievement, and longitudinal studies show that rejection in the preschool years forecasts poorer school adjustment, internalizing symptoms, and later psychopathology. By identifying which children cluster into the rejected profile, and by pinpointing the temperamental, cognitive, and relational factors that push them there, the study offers a screening logic that is more precise than simply flagging children with low acceptance scores. A rejected child with high inhibition poses a different intervention problem from a rejected child with high harm avoidance, and the profile approach makes such distinctions visible.

Executive functioning, notably, played a less dominant role in the analysis than temperament and teacher relationships, though the study contributes to an ongoing debate about which self-regulatory skills matter most for peer standing. Prior longitudinal work has shown that executive function predicts the growth of peer relationships over time, sometimes even more strongly than emotion understanding. The present findings suggest that in a cross-sectional snapshot of four- and five-year-olds, the crystallized temperamental dispositions and the relational climate surrounding the child may be the more immediate differentiators of social group membership. Inhibition did appear in the rejected-profile prediction, tying impulsive action tendencies to peer aversion, but its effect was embedded within a broader configuration of traits rather than standing alone.

The study’s cultural context deserves attention. All participants were Korean children, and the researchers situate their work within a Korean early childhood landscape that has seen intense discussion of children’s social development, including research on classroom surveillance and its effects on teacher practice. Whether the three-profile structure and its predictors replicate in Western samples remains an open question, particularly given evidence that peer relationship dynamics and the salience of particular temperamental traits can vary across cultures. The data and study materials are publicly available through the Open Science Framework, and the study was approved by the Institutional Review Board at Chungbuk National University, transparency measures that should facilitate cross-cultural replication efforts.

For practitioners, the message is clear and actionable. Kang and Shin argue that support for young children’s peer relationships should be tailored to the child’s individual profile rather than delivered as a one-size-fits-all social skills curriculum. A rejected child may need help with behavioral inhibition and impulse control; a child on the edge of popularity may simply need a teacher relationship with fewer conflict-laden exchanges to consolidate peer standing. Teachers, in this framing, are not passive observers of classroom social hierarchies but active participants whose warmth or friction ripples outward into the peer ecology. As early childhood classrooms become increasingly recognized as the crucible where lifelong social trajectories begin, studies like this one provide the empirical map that educators have long needed to intervene early, precisely, and humanely.

Subject of Research: Latent peer relationship profiles and their predictors among young children

Article Title: Latent Profiles and Predictors of Young Children’s Peer Relationships

Article References: Kang, S., & Shin, N. (2026). Latent Profiles and Predictors of Young Children’s Peer Relationships. Early Childhood Education Journal. https://doi.org/10.1007/s10643-026-02352-z

Image Credits: AI Generated

DOI: 10.1007/s10643-026-02352-z

Keywords: peer relationships, latent profile analysis, temperament, executive functioning, teacher-child relationship, peer rejection, peer acceptance, early childhood, sociometry, preschool children, Latent, Profiles