This dissertation study aimed to examine the relationship between Tier 1 Positive Behavioral Intervention and Supports (PBIS) implementation fidelity and the academic (e.g., MAP Growth scores) and behavioral outcomes (e.g., major office discipline referrals, suspensions). High quality PBIS implementation fidelity has been linked with improved…

Objective: Adverse childhood experiences (ACEs) are early life experiences that influence mental health outcomes, though there are mixed findings reported in relation to attention deficit hyperactivity disorder (ADHD) symptoms. The current study compared adults who experienced ACEs on measures of ADHD symptom reporting, psychological symptoms, and…

This study explored the association between intelligence and motor skills in children with ASD after controlling for Attention Deficit and Hyperactivity Disorder (ADHD) and the associations between motor impairment and intellectual disability (ID) in this population. In total, 120 children with ASD (3-16 years; 81.7% boys) completed a standardized…

This manuscript aimed to advance our understanding of inhibitory control (IC) in autism spectrum disorders (ASD), adopting a meta-analytic multilevel approach. The first meta-analysis, on 164 studies adopting direct measures, indicated a significant small-to-medium (g = 0.484) deficit in the group with ASD (n = 5140) compared with controls (n =…

Individuals with attention-deficit/hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) may exhibit driving difficulties due to cognitive impairments such as time perception difficulties, a construct related to the perception of time-to-collision (TTC). This study examined the timing abilities of drivers with ASD and ADHD. Sixty…

The present study investigated the association between symptoms of depression in late adolescence and completion of upper secondary school, taking symptoms of ADHD and conduct disorder, and parental education into account. The study is based on the youth@hordaland-survey, conducted in Western Norway in 2012. A total of 9157 adolescents (aged…

This paper presents an investigation that aims to: (1) explore the relations between core symptoms of adult Attention Deficit and Hyperactivity Disorder (ADHD) and several typical Internet activities, and (2) compare the predictive power of two core symptoms of ADHD- inattention and hyperactivity/impulsivity- in predicting Internet addiction.…

This research investigated the correlations among problem-solving, coping styles, and stress levels of parents of children with autism spectrum disorder, attention deficit hyperactivity disorder, and typical development. We used a correlational survey model design and collected the data with the Problem-Solving Inventory (PSI), the Ways of Coping…

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…

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…

The purpose of this phenomenological systematic qualitative review is to increase awareness about the self-identified lived experiences of college students with ADHD and provide information to faculty and administrators to influence institutional change, as well as peers and parents to inform practical, personalized support. The conceptual…

Attention-deficit/hyperactivity disorder (ADHD) is a frequent diagnosis among children with emotional and behavioural difficulties. However, it is unclear which specific "beliefs" teachers hold about the disorder and how these shape their "expectations." Essentialist beliefs about ADHD (the assumption that individuals with ADHD…

The "simple view of reading" is an influential model of reading comprehension that asserts that children's reading comprehension performance can be explained entirely by their decoding and language comprehension skills. Children with attention-deficit/hyperactivity disorder (ADHD) often exhibit difficulty across all three of these…

The few reports on the language skills of children with attention-deficit/hyperactivity disorder (ADHD) offer conflicting evidence on whether they face significant challenges, and if so, whether these challenges are present in all aspects of language. Here, we investigated a sample of Greek-speaking children with ADHD (n = 29) using a structural…

Children with neurodevelopmental disorders often have social-emotional and behavioural difficulties. The present study explored these difficulties in children (n = 50, aged 6-10 years) with autism spectrum disorder, attention-deficit/hyperactivity disorder and developmental language disorder. Parents, teachers and therapists evaluated children's…