Objective: In this review, we examined if there is a deficit in facial recognition of emotion (FER) in children, adolescents, and adults with attention deficit hyperactivity disorder (ADHD). Background: Emotional regulation is impaired in ADHD. Although a facial emotion recognition deficit has been described in this condition, the underlying…

Relatively little is known about the factor structure of disruptive behavior among preadolescent girls. The present study reports on exploratory and confirmatory factor analyses of disruptive girl behavior over four successive data waves as rated by parents and teachers in a large, representative community sample of girls (N = 2,451). Five factors…

The problem of valid measurement of psychological constructs remains an impediment to scientific progress, and the measurement of executive functions is not an exception. This study examined the statistical and theoretical derivation of a behavioral screener for the estimation of executive functions in children from the well-established Behavior…

The studies presented in this article longitudinally examined preschool children's learning behavior, which has received increased attention in recent years because of its positive influence on school readiness. The first study used a statewide database (N = 23,434) to examine whether and how learning behavior changed over time. The second study…

Our study of 477 children with autism (1-15 years, IQs 9-146) showed that parent reported sleep problems are found in most children with autism and are not significantly related to age, IQ, gender, race, parent occupation, neuropsychological functioning, and learning ability. However, sleep problems increased with severity of autistic symptoms and…

The present research investigated the emotional functioning of children with and without Attention Deficit Hyperactivity Disorder (ADHD), in order to examine the relationships between emotional intensity and classroom-based responses to physically and interpersonally provoking situations. Seventy children (35 with ADHD and 35 without ADHD) in…

This study drew on four cycles of longitudinal data from the Canadian National Longitudinal Survey of Children and Youth to examine the academic and behavioural trajectories of youth between 10 and 15 years of age as a function of maternal age at childbearing. The analyses controlled for several family characteristics and examined the mediating…