Aim: The aim of the present study was to investigate whether behaviours typical of working memory problems are associated with poor academic attainment in those with attention-deficit-hyperactivity disorder (ADHD), as well as a non-clinical group identified on the basis of working memory difficulties. Method: Children clinically diagnosed with…

The study used multiple-group confirmatory factor analysis (CFA) and multiple indicators multiple causes (MIMIC) procedures to examine the measurement and construct equivalencies for father and mother ratings of ADHD symptoms, recoded as binary scores. Fathers (N = 387) and mothers (N = 411) rated their primary school-aged children on the…

The focus of this volume is to identify and review issues and outcomes associated with behavioral concerns of students with learning and behavioral disabilities. Students must navigate a number of environmental conditions, task demands, and social interactions with peers and adults throughout the school day. To be successful, they must employ a…

Teachers want to do their best for every child, but worry about causing offence and often shy away from troublesome issues. The classroom situations and strategies presented here will help teachers negotiate their way through complex situations and bring about constructive change. This book clarifies concepts and value differences and the subtle…

This cross-sectional study examined perceived access to services, quality of care, and family impact reported by caregivers of children aged 3-17 years with autism spectrum disorders, as compared to caregivers of children with other developmental disabilities and other mental health conditions. The 2009-2010 National Survey of Children with…

A previous finding from our group indicated that teacher-rated antisocial behaviour (AB) among 7-year-olds is particularly heritable in the presence of callous-unemotional (CU) traits. Using a sample of 1865 same-sex twin pairs, we employed DeFries-Fulker extremes analysis to investigate whether teacher-rated AB with/without CU traits also shows…

The graded response model (GRM), which is based on item response theory (IRT), was used to evaluate the psychometric properties of the inattention and hyperactivity/impulsivity symptoms in an ADHD rating scale. To accomplish this, parents and teachers completed the DSM-IV ADHD Rating Scale (DARS; Gomez et al., "Journal of Child Psychology and…

There is an increasing interest in the diagnosis of attention-deficit/hyperactivity disorder (ADHD) in adulthood. It is also thought that ADHD is more prevalent in the field of intellectual disability (ID) than in the general population, but there are not many experimental studies. Since ADHD diagnosis in adults is more difficult, specific rating…

Most analyses of reaction time (RT) data are conducted by using the statistical techniques with which psychologists are most familiar, such as analysis of variance on the sample mean. Unfortunately, these methods are usually inappropriate for RT data, because they have little power to detect genuine differences in RT between conditions. In…

Understanding attention-deficit/hyperactivity disorder (ADHD) has come a long way since its early description as a moral and behavioral deficit. ADHD has various subtypes, each with comorbid disabilities. Despite these advances, gaps remain in identifying and understanding girls with ADHD, especially when they have the inattentive-type ADHD. This…

Two versions of the line bisection task, paper-and-pencil and computerized, were administered to non-medicated children (5-12 years) with and without Attention-Deficit/Hyperactivity Disorder (ADHD). Fifteen children were classified with ADHD-Inattentive type (ADHD-I), 15 were classified with ADHD-Combined or Hyperactive-Impulsive type (ADHD-C),…

While many people tend to think of Attention Deficit Hyperactivity Disorder (ADHD) as a childhood problem, at least two-thirds of children with ADHD maintain symptoms such as inattention, hyperactivity, and impulsivity into adulthood. This article presents the fifth of a 10-part series exploring ADHD. The author provides some background…

Background: An important theory of attention suggests that there are three separate networks that execute discrete cognitive functions. The "alerting" network acquires and maintains an alert state, the "orienting" network selects information from sensory input and the "conflict" network resolves conflict that arises between potential responses.…

The article reviews existing literature on the effects of stimulant medications on the growth of children with attention-deficit/hyperactivity disorder. It concludes that treatment with stimulants in childhood results in moderate growth deficit in height and weight.

The study investigates the relation between attention-deficit/hyperactivity disorder symptomatology and parent-reported sleep problems among preschoolers aged 2 to 5 years. Results indicate that neither condition was uniquely related to parent-reported sleep problems, but inattentive symptomatology was uniquely associated with daytime sleepiness.