This study aimed to describe the behavioral profile of individuals with SYNGAP1-ID. Parents/carers of 30 individuals aged 3-18 years old with a diagnosis of SYNGAP1-ID and 21 typically developing individuals completed the Vineland-3 Adaptive Behavior Scale and the Child Behavior Checklist. We found that those with SYNGAP1-ID showed fewer adaptive…

The increasing prevalence of children's attention-deficit hyperactivity disorder (ADHD) and internalizing behaviors requires investigation into putative risk factors. This longitudinal project of 105 preschoolers (54.3% girls; 90% White) examined influences of early life experiences (perinatal stressors, home environment, maternal personality) and…

Background: The longitudinal impact of fetal growth on attention problems in males and females is unclear. This study aims to evaluate the impact of fetal growth assessed by neonatal anthropometry throughout childhood and adolescence in males and females separately. Methods: We compared neonatal anthropometry (birth weight (BW), head circumference…

The quality of peer attachment in adolescence is an important determinant of psychosocial adjustment. To date, few clear conclusions can be drawn about the most important factors associated with the quality of peer attachment. This study aimed to identify the most important individual and relational factors associated with peer attachment quality,…

Research findings on the prevalence and characteristics of behavioral problems of children with hearing loss (HL) are not consistent. The aim of this study was to compare the behavioral problems of children with HL, with typical development (TD) and with autism spectrum disorder (ASD); and to determine the factors affecting behavioral problems in…

This study using PROSPER data (N = 977, age 11.5-age 15) investigated the longitudinal within-family associations between parent reported parental monitoring and adolescent aggression. Importantly, this study is the first one to examine parent gender and adolescent gender differences on these within-family associations. Results differed between…

Brain age, a measure of biological aging in the brain, has been linked to psychiatric illness, principally in adult populations. Components of socioeconomic status (SES) associate with differences in brain structure and psychiatric risk across the lifespan. This study aimed to investigate the influence of SES on brain aging in childhood and…

Introduction: Compared to their neurotypical peers, children and adolescents with neurodevelopmental disorders (NDs) experience worse mental health outcomes, including greater service use and functional impairment. Few studies, however, have examined the neurodevelopmental contributions to mental health complexity among those seeking…

The present study examined individual differences in the development of sustained attention across toddlerhood, as well as how these individual differences related to the development of language and sleep. Toddlers (N = 314; 54% male) were assessed at 30, 36, and 42 months using multiple measures of attention, a standardized language assessment,…

This study sought to characterize caregiver concerns for autistic children receiving care in two public service systems--schools and mental health programs--and to identify child and family characteristics associated with these concerns. Caregivers of 353 school-age autistic children in mental health services (n = 192) or schools (n = 161) named,…

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,…

Though experiencing maltreatment (abuse or neglect) appears to be common in students with the special education label of emotional and behavioral disorders (EBD), little research has been devoted to this topic by EBD educators. This paper uses archived file drawer data from 1992 that focuses on 149 students newly classified with EBD for whom a…

Background: Limited data exist on problematic sexual behaviour (PSB) in youth with developmental disabilities in South Korea. Method: Sixty-one parents of children with intellectual disabilities or autism spectrum disorder (aged 13-30) reported children's PSB and emotional, behavioural, cognitive, and interpersonal factors. The frequency of PSB in…

Background and Purpose: Schoolchildren with language difficulties experience more peer victimization compared to their typically developing (TD) peers. Whether these children also bully their peers (bully perpetration) more than TD children is unclear. Furthermore, little is known about peer victimization and bully perpetration among preschool…

Research on the effects of nursery school attendance still presents divergent results: a possible explanation is that the effects of child care on development outcomes can be modulated by individual characteristics, such as gender or temperament. In the present study, gender differences in nursery adaptation (evaluated by social skills and…