Although the estimated prevalence of ADHD in the school population is 5%, various studies carried out in Latin America have obtained higher figures. This descriptive-cross-sectional research analysed the prevalence of ADHD symptomatology in a random and probabilistic sample of 1535 schoolchildren from Cuenca-Ecuador (aged from 72 to 164 months,…

No studies have analyzed agreement between mother, father, and teacher ratings of academic, cognitive, and handwriting problems in school-age children and compared these with objective achievement, IQ, and writing scores. The sample comprised 503 children with autism and/or ADHD 6-16 years rated by mothers, fathers, and teachers on the Pediatric…

Attention-deficit/hyperactivity disorder (ADHD) is one of the most common mental disorders of childhood. It is characterized by a pattern of inattention, impulsivity, or hyperactivity that leads to functional impairment experienced in multiple settings. Symptoms of ADHD occur during childhood, and many children continue to have symptoms and…

Background: Sensory processing differences are reported both in children with ADHD and in children with autism. Given the substantial overlap between autism and ADHD, the current study examined which sensory features were uniquely predictive of autistic traits after controlling for ADHD symptoms, age, IQ, and sex in a sample of children and…

A recent study suggests that parent report on the Social Symptom and Prosocial scales of the Childhood Joint Attention Rating Scale provides useful information about differences in the social development of school-aged autistic children. The current study provides additional psychometric data on the Childhood Joint Attention Rating Scale regarding…

Introduction: Individuals with ADHD continue to face stigma, which can negatively impact their access to, adherence to, and quality of mental health services, as well as their overall wellbeing. Perspectives of various stakeholders regarding priorities for stigma reduction remain underexplored. This study explores young adult, parent, teacher, and…

Background: Many children with attention-deficit/hyperactivity disorder (ADHD) demonstrate impairment in social skills. However, ADHD rarely occurs in isolation, with approximately one-third of children with ADHD having one additional disorder, and another third having two or three comorbidities. Few studies have considered the global and specific…

Despite the presence of many studies on the conduct and adjustment traits of typically developing siblings of children with autism spectrum disorder (sibs-ASD) in the literature, studies examining the risk of siblings developing a psychiatric and psychological disorder or neurodevelopmental disability are limited. This study aims to comparatively…

Research is equivocal on whether attention orienting is atypical in autism. This study investigated two types of attention orienting in autistic people and accounted for the potential confounders of alerting level, co-occurring symptoms of attention-deficit/hyperactivity disorder (ADHD) and anxiety, age, and sex. Twenty-seven autistic participants…

Stuttering and other developmental disorders are known to affect more male than female children. The present study compared: (1) stuttering prevalence in males and females at discrete ages and (2) prevalence of coexisting developmental disorders in male and female children who stutter (CWS). Data were obtained from the National Health Interview…

This study examined whether domain-general cognitive weaknesses in processing speed (PS) or executive functioning (EF) moderate the relation between word reading scores and anxiety such that lower word reading scores in combination with lower cognitive scores are associated with higher anxiety symptoms. The sample consisted of 755 youth ages 8-16…

Objective: Sluggish cognitive tempo (SCT) and autistic-like traits (ALTs) may occur together in attention-deficit/hyperactivity disorder (ADHD). This study aimed to explore a possible association between SCT and ALTs in a sample diagnosed with ADHD. Method: A total of 147 children and adolescents with ADHD aged 6 to 14 were included in the study.…

Autism spectrum disorder and attention deficit/hyperactivity disorder are neurodevelopmental disorders with high rates of co-occurrence. However, there is a dearth of large, nationally representative studies examining the prevalence of co-occurring autism spectrum disorder and attention deficit/hyperactivity disorder among children. The aim of…

Children with complex behavioral profiles (e.g., ASD + ADHD) may experience delays in obtaining a final diagnosis. Low-resource or underrepresented groups may be at even greater risk for delayed diagnosis. We assessed the effect of sociodemographic factors, symptom complexity and co-occurring conditions, and identifier of first symptoms on…

This study investigated the relationship between mathematics difficulties and psychopathology in a large community sample (N = 881) of youth (8-18 years of age) in the United States. The primary aims of the study were to (a) test the associations between mathematics difficulties and specific components of internalizing, externalizing, attention,…