An extensive literature links language problems with behavioral difficulties and academic underachievement. Although less extensive, emerging literature suggests that temperament, Positive Affectivity (PA) in particular, contributes to language development. Thus, the present study was focused on PA related temperament dimensions in infancy as…

High and stable levels of aggression and the presence of aggressive behaviour in multiple settings according to different informants are risk factors for later problems. However, these two factors have not been investigated in early childhood. The present study investigates trajectories of parent-reported child aggression from 1.5 up to 6 years of…

Gender differences in student achievement have been widely studied. Considering the long-term effects of externalising behaviour problems on children's later academic performance, it can be conjectured that gender disparities in student achievement may be rooted in developmental characteristics in early childhood. As an effort towards contributing…

Positive outcomes for children with developmental disabilities (DD) can be affected by children's behavior problems. This study examined the family environment of 125 children with DD at age 3, and the extent to which that environment, as well as children's cognitive and adaptive functioning, predicted the problematic behaviors that children with…

Behavioural sleep problems (childhood insomnias) can cause distress for both parents and children. This paper reports a model describing predictors of high sleep problem scores in a representative population-based random sample survey of non-Aboriginal singleton children born in 1995 and 1996 (1085 girls and 1129 boys) in Western Australia.…