This systematic review was conducted to identify the literature examining the prevalence of problematic internet use (PIU) in individuals with autism spectrum disorder (ASD), the difference in prevalence of PIU between those with and without ASD, and the correlates of PIU in ASD. Ten studies were identified. The eight studies with comparison…

Objective: This study aimed to investigate the relationship between Cognitive Disengagement Syndrome (CDS) symptoms in children/adolescents and their parents within the Turkish population, examining the association with co-occurring ADHD symptoms, peer/social relationships, and total difficulties. Method: The study included 229 parents aged 18 to…

The aim of this study was to investigate the psychiatric disorders that accompany mild intellectual disability (ID) in school-aged children in a clinical setting. The Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children-Present and Lifetime Version interview was conducted with the children with mild ID and their…

Background: A critical issue in devising effective interventions for the treatment of children's behavioral and emotional problems identifying genuine family environmental factors that place children at risk. In most twin and family studies, environmental factors are confounded with both direct genetic risk from parents and the indirect effect of…

Children with ADHD and autism have some similar features, complicating a differential diagnosis. The purpose of our study was to determine the degree to which core ADHD and autistic symptoms overlap in and discriminate between children 2-16 years of age with autism and ADHD. Our study demonstrated that 847 children with autism were easily…

Informant- and gender-specific characteristics of Oppositional Defiant Disorder (ODD) and how these might relate to patterns of comorbidity need to be further clarified. We collected data from 7,007 children (aged 7-9) who participated in the Bergen Child Study (BCS), an ongoing population-based study of children's development and mental health. A…

In typically developing children, boys are more commonly diagnosed than girls with disruptive behavior disorders, namely, attention-deficit/hyperactivity disorder, conduct disorder, and oppositional defiant disorder. For children with intellectual disability (ID), the evidence for this gender effect is less clear. In this report we examine gender…

This study examined the self-reported expression of overt aggressive behaviors and covert emotional and cognitive processes in adolescents diagnosed with ADHD and comorbid disruptive behavior disorders (DBDs) during childhood. Methods: Participants were a clinically referred sample of 85 individuals diagnosed with ADHD, initially recruited in the…

Background: It is increasingly recognized that youth who follow early onset persistent (EOP), childhood limited (CL) and adolescent onset (AO) trajectories of conduct problems show somewhat varying patterns of risk (in childhood) and adjustment problems (in adolescence and adulthood). Little, however, is known about how other adjustment problems…

Behavioral genetic research has concluded that the more important environmental influences result in differences between siblings (referred to as "nonshared"; "e[superscript 2]"), whereas environmental influences that create similarities between siblings (referred to as "shared"; "c[superscript 2]") are indistinguishable from zero. However, there…

Objective: To study the psychiatric comorbidity of a clinical sample of children with ADHD and the psychiatric disorders in their parents. Method: Structured psychiatric interviews assessing lifetime psychiatric disorders by "DSM-IV" criteria, using the Farsi version of the Schedule for Affective Disorders and Schizophrenia. Results: The…

Confirmatory factor analysis was used with a multitrait (attention-deficit/hyperactivity disorder-inattention, attention-deficit/hyperactivity disorder-hyperactivity/impulsivity, oppositional defiant disorder toward adults, academic competence, and social competence) by multisource (mothers and fathers) matrix to test the invariance and…

Background: To test whether the retrospective reporting of the age of onset impairment criterion for attention deficit/hyperactivity disorder (ADHD) required in the "Diagnostic and Statistical Manual of Mental Disorders-IV" (DSM-IV) complicates identification of new and known child and adolescent cases later in life. Methods: A birth-records-based…

Evidence is scarce regarding the prevalence of interparental discord in families of adolescents with attention-deficit/hyperactivity disorder (ADHD). Using data collected from adolescents with childhood ADHD and comorbid oppositional defiant disorder (ODD; n = 46) or conduct disorder (CD; n = 23), with childhood ADHD only (n = 26), and without…

Objective: To assess the prevalence of ADHD symptoms and their relationship to psychopathology in adolescents from the European North of Russia. Method: The prevalence of ADHD symptoms is assessed by teacher reports in 536 adolescents. Internalizing and externalizing problems are assessed by teacher ratings and student self-reports. Results:…