This study investigated the transactional relations between vocabulary and disruptive behaviors (DB; physical aggression and opposition/rule breaking/theft and vandalism), during the transition to formal schooling, using a community sample of 572 children. Cross-lagged panel model analyses were used to examine bidirectional relationships, comparing physical aggression to non-aggressive DB. Transactional associations between vocabulary and DB were observed, coinciding with school entry. Lower vocabulary in preschool (60mo.) was predictive of higher physical aggression scores in kindergarten. In turn, higher physical aggression in kindergarten was predictive of lower vocabulary in 1st grade. For non-aggressive DB, recurrent associations were found. Lower verbal skills in preschool (42mo.) and kindergarten predicted higher non-aggressive DB scores later in preschool and in 1st grade respectively. In turn, higher non-aggressive DB in kindergarten predicted lower vocabulary scores in 1st grade. In contrast to transactional paths from vocabulary to DB, transactional paths from DB to vocabulary observed after the transition to elementary school remained significant after controlling for comorbid hyperactivity, impulsivity and inattention behaviors, suggesting these links were specific to aggressive and non-aggressive DB. Practical implications for prevention are discussed.

Aims: To determine whether distinct trends can exist in children's diurnal cortisol slopes as they transition to school, and the extent to which these trends relate to preschool attendance and/or exerted effortful control. Method: A secondary analysis of the anonymised data gathered for the UK Transition to School Study was carried out. 105 children were studied over a 12-month period during transition to school at mean age 55 months. Children's diurnal cortisol slopes were measured as the difference between average salivary cortisol concentrations (SCC) sampled at waking and early evening over two days at each of three measurement time points: 4 months before, 2 weeks after, and 6 months after school entry. Children's effortful control was measured at 2 weeks after school entry using the parent-administered Child Behavior Questionnaire. Parental questionnaires recorded the duration children spent in preschool (months; days per week; hours per week), and four background characteristics: child gender, parental cohabitation, responding parent's age, and responding parent's level of education. Findings: Latent class growth analysis suggested two distinct trends in diurnal cortisol slopes during children's transition to school: 39% of children demonstrated flatter diurnal cortisol slopes. These children were likely to have spent fewer hours per week in preschool, and were likely to exert less effortful control 2 weeks after transitioning to school. These associations underscore the importance of continuity in children's daily routines as they transition to school. Implications are discussed concerning school readiness and the effectiveness of early interventions.

This study reports data from teachers in regular classrooms about their experiences of inclusion for 143 young children with disabilities. Children were recruited from early intervention programs and their experiences were tracked across 3 years, from a Preparatory year to Year 2 of school. Children's teachers rated the appropriateness of the child's placement in their classroom as high to very high. However, most teachers rated the resources and supports available to support inclusion as only adequate. Teachers perceived a range of benefits for the child, peers, and themselves from inclusion but also identified significant challenges, including time pressures and increased responsibilities, as well as various behavioural and developmental concerns that had an impact on all children's learning. Challenges identified deserve continued attention for successful inclusive practice.