This study aims to identify early childhood sociability trajectories and examine their longitudinal associations with behavior problems. Using a population-based data set presented by the Panel Study on Korean Children, sociability trajectories from age 2 to age 4 were identified by latent class growth analysis. Associations between sociability…

The second year of life is a time of formative developmental change as basic behavioral systems undergo rapid integration and expansion. This study examined the developmental trajectories of social-emotional (SoE) outcomes and the effects of infant sex and household chaos (HC) on the development of SoE outcomes across the second year of life. The…

This study investigated the prevalence, and the developmental, behavior and emotional outcomes of 675 preschoolers with ASD with or without a history of regression, who participated in the Study to Explore Early Development (SEED). The SEED project is a cross-sectional case-control study that collected data between 2007 and 2011. Children's…

Socio-emotional school behavior and learning are both fundamental aspects of children's development influenced by cognitive control processes named Executive Functions (EF). Yet, research on school-age children has often focused on the relationship between EF and learning skills overlooking that of EF and school behavior, which has usually been…

Play is a universal activity that is an integral part of childhood experiences and aids in the development of important skills. While most children naturally engage in play, children with autism spectrum disorder (ASD) do not follow the typical pattern of play development and often exhibit delays in play skills. One of the defining characteristics…

There is a consensus that the crises children encounter during the transition period might impact negatively on children's learning and development. However, from cultural-historical perspective, qualitative leap in development can hardly be achieved without crises. This paper, drawing upon cultural-historical theory as the framework and by using…

This study compared sibling interactions between 24-month-old children and their older sibling with ASD (high-risk; n = 24) with 24-month-old children and their typically developing older sibling (low-risk; n = 32). First, high-risk sibling pairs showed lower levels of positive behaviour and younger siblings of children with ASD imitated their…

In a world where children are likely to experience early-life trauma, relationships matter, and trust is a key in forming healthy working relationships. Intentionally teaching adults and teachers how to evoke calmness in ourselves and breathe to handle negative situations, trusted educators can then teach children to do the same. It is important…

Behavioral inhibition is a temperament assessed in the toddler period via children's responses to novel contexts, objects, and unfamiliar adults. Social reticence is observed as onlooking, unoccupied behavior in the presence of unfamiliar peers and is linked to earlier behavioral inhibition. In the current study, we assessed behavioral inhibition…

The present study examined the early parenting and temperament determinants of children's antisocial and positive behaviors in a low-income, diverse ethno-racial sample. Participants were from the Early Head Start Research and Evaluation Project, which included 960 European American (initial M age = 15.00 months; 51.2% female) and 880 African…

The present research explored the relation between socio-cognitive skills, as Theory of Mind and affective empathy, social behaviour, attachment style and scholastic success in children, aged from 8 to 11 years (N = 159; 90 females, 69 males; M[subscript age] = 9,60; DS = 0.78). Several assessment tools were administered to children on mentalizing…

Research Findings: This study investigates contributions of the preschool classroom interpersonal environment to students' social competence in 1st grade. Participants were 862 ethnically/racially diverse children who attended public preschool classrooms serving low-income families. Systematic observations of 60 classrooms occurred across the…

Background: Children with 22q11.2 deletion syndrome (22q11DS) are at risk for social-behavioural and neurocognitive sequelae throughout development. The current study examined the impact of family environmental characteristics on social-behavioural and cognitive outcomes in this paediatric population. Method: Guardians of children with 22q11DS…

The current study used developmental trajectories to examine the relationship between internalising and externalising behaviours and victimisation over the transition period from primary to secondary school. Data were collected using a self-completion questionnaire four times over 3 years from 3,459 students aged 11-14 years. Students were tracked…

Children who experience early and extensive child care, especially center-based care, are rated by teachers as having more externalizing behavior problems than are other children. This association is reduced, but not eliminated, when care is of high quality, and it varies by socioeconomic disadvantage and the type of behavior assessed. We examine…