Objectives: There is a need to examine the utility of objective measures of attention-deficit/hyperactivity disorder (ADHD) symptoms in children. Objective measures of ADHD symptoms, such as physical activity, may provide a more nuanced assessment of behavior that can be used to augment traditional cross-informant ratings of ADHD symptoms by…

Autistic youth and youth with ADHD have heightened rates of bullying victimization, anxiety, and depression. The purpose of this research is to use nationally representative US data to (1) estimate the prevalence of anxiety and depression among bullied neurodivergent youth and (2) investigate whether the association between bullying victimization…

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…

Background: The reciprocal relationships between literacy skills and various subscales of mental health have been examined in few studies. The objective is to re-examine this question in a longitudinal study with the possibility of a gender effect. Methods: A 4-year longitudinal study was conducted as part of the French national cohort ELFE (N =…

This study examines the relationship between middle school students' undesirable behaviours and digital game addiction. Undesirable behaviours disrupt teaching, harm peers, compromise safety, and lower teacher motivation. These behaviours, often influenced by family and environmental factors, disrupt classroom order. Digital games, particularly…

Adolescents with elevated social anxiety commonly experience peer-related impairments--particularly with same-age, unfamiliar peers--stemming from their "avoidant behaviors." Yet, peer-related impairments are not unique to social anxiety. For example, adolescents who experience social anxiety may also experience symptoms of attention…

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.…

Objective: Previous studies have linked ADHD with self-harm, but the processes underlying this association are not fully understood. This research aims to investigate the role of sleep disturbances as a potential pathway between ADHD diagnosis and self-harm behaviors. Materials and Methods: The study included 90 youth aged between 11 and 18 years,…

Objective: This study aims to investigate the impact of positive illusory bias (PIB) on the relationship between ADHD symptoms and functioning in college students, with a focus on gender differences. Method: The sample consisted of 195 college students, including 148 with ADHD and 47 without ADHD. Measures of ADHD symptomatology, life…

Poor reading has been linked to negative outcomes on a wide range of emotional-behavioural dimensions in children. However, little is known about the time course of these associations. In this study we analyse data from a sample of Finnish children (N = 199; 106 boys) which included measures of reading fluency in grade 1 (age 7 or 8), and…

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,…

Background: Adverse childhood experiences (ACEs) have long been associated with attention-deficit/hyperactive disorder (ADHD) diagnoses in children; but the data used is now over 6 years old (from 2017 to 2018). Understanding the current landscape of their prevalence and association is needed to capture evolving social, environmental, and economic…

This study followed a pre-registered analysis plan with the aim to investigate whether autistic traits and self-compassion are correlated in autistic adults, and to test an indirect effect of autistic traits on anxiety/depression via self-compassion. We present the findings of an online survey of 456 participants (n = 228 autistic adults, n = 228…

The current paper uses data collected from a publicly available, nationally representative data set to examine the effects of TV viewing and video gaming on adolescent behavioral problems and cognitive achievement. Results revealed that extended hours of TV viewing were associated with greater anxiety/depression and antisocial problems. On the…