It is well-known that children with attention-deficit/hyperactivity disorder (ADHD) and specific learning disorder (SLD) often exhibit behavioural and emotional problems. However, little is known about how these problems compare between the two groups of children. This study sought to fill this gap in knowledge by comparing the executive functions…

A gap exists in the literature regarding aggression in autism spectrum disorders and how this behavior compares to other groups. In this multisite study, the "Children's Scale for Hostility and Aggression: Reactive/Proactive" and the Aggression subscale of the "Child Behavior Checklist" were rated for 414 children with autism…

Prenatal and perinatal risk factors, such as low birth weight, have been linked to higher levels of aggressive and destructive behaviours during childhood. Although low birth weight is associated with childhood externalizing behaviour, the mechanisms underlying this relationship remain open to empirical investigation. The current study extends the…

Objectives: To investigate the most frequent reasons for referral, the most common special interests, age at first referral to a mental health service, and the age of diagnosis in children and adolescents with Asperger syndrome living in Turkey. Methods: This study includes 61 children and adolescents diagnosed with Asperger syndrome using…

Existing research suggests that there is a relation between academic/cognitive deficits and externalizing behavior in young children, but the direction of this relation is unclear. The present study tested competing models of the relation between academic/cognitive functioning and behavior problems during early childhood. Participants were 221…

Background: This study investigates the role of IQ, autistic traits and challenging behaviours in affecting adult outcomes among adolescents who receive special educational assistance. Methods: A total of 58 participants were recruited from an ongoing longitudinal study. All received assessments of IQ, behavioural patterns (using the Childhood…

Impulsivity and inattention are key constructs at the interface of temperament and domains of childhood behavioral problems, such as ADHD and ODD. A multi-method, multi-source assessment of impulsivity and inattention was conducted with 256 families of twins at a mean age of 8-9 years from an epidemiologically defined community sample. Analysis of…

Objective: The main aim of this study was to examine the age-dependent remission from ADHD in girls transitioning through childhood into adolescence and early adulthood. Method: We conducted a 5-year prospective follow-up study of 123 girls with ADHD and 106 non-ADHD control girls aged between 6 and 17 years at ascertainment. ADHD was considered…

Wechsler Intelligence Scale for Children data were obtained from 18 violent juvenile offenders. The similarities ratio was computed and compared with the score from a random subsample of 18 juveniles from a larger population of 200 offenders. There was a significantly lower similarities ratio for the violent group. (Author)