The present study investigated prenatal and early postnatal risk factors associated with developmental patterns of disruptive behaviors (DBs; e.g., hyperactivity-impulsivity, noncompliance, physical aggression) from ages 1.5 to 5 years in a population birth cohort (N = 2,057; 50.7% boys). Six high-trajectory classes obtained by latent growth…

This study explored the changes in routine and emotional themes experienced by families of children with learning differences or disabilities due to mandatory school closures during COVID-19 in Québec, Canada. A questionnaire was used to compare the family routines of 21 participants before and after the school closures. The study's findings…

The dysregulation profile (DP) in youth is characterized by severe emotional, cognitive, and behavioral dysregulation and is associated with an increased risk for psychiatric disorders. Adolescent self-regulation has important implications for adulthood outcomes, yet this association is understudied in the context of the DP in emerging adults.…

There is growing concern about the mental health and resilience of today's children and difficulties with self-regulation are implicated in educational outcomes, cognitive problems, internalizing problems such as depression and anxiety, externalizing problems such as aggression, and physical health problems. Self-regulation is a growing topic of…

Introduction: Challenging behaviors are common in individuals with developmental disabilities and pose significant challenges to their well-being and that of their families and communities. Method: We explored the occurrence and predictors of self-injurious behavior and aggressive/destructive behavior in 372 Canadian youths (aged 4-20 years) with…

Children frequently enter elementary school unprepared for its academic and socioemotional challenges. This can lead to challenging behaviors that negatively affect students' educational experiences, put them at risk for emotional and behavioral disorders (EBD), and impact relationships with teachers. Despite a large research base on student…

The Dual Failure Model suggests that peer victimization (social failure) and academic difficulties (academic failure) mediate the association between externalizing and later internalizing problems. The present study sought to better understand why children with externalizing problems develop later internalizing problems by testing the Dual Failure…

A number of studies report that from the first years of life, preterm children have more difficulty self-regulating and communicating in their social group. If these children show signs of difficulty adjusting socially, the question then is whether or not these problems continue and persist over time. The objective is to observe the combined…

Poverty is a well-established risk factor for behavior problems, yet our understanding of putative family mediators during early childhood (i.e., before age 5 years) is limited. The present study investigated whether the association between poverty and behavior problems during early childhood is mediated simultaneously by perceived parenting,…

This study explored the relationship between electronic media use, sleep and behaviour in preschool-aged children between the ages of three and five years. The primary hypothesis of this study was that excessive electronic media use (>2 hours a day) would positively correlate with sleep patterns (in particular, disturbances) and negative…

Anger related behaviours such as aggression are known to be an area of difficulty for children with autism spectrum disorders (ASD). A national internet forum for parents of children with ASD was selected out of other similar forums from six English speaking countries. Information about the angry episodes of 121 children with ASD as described by…

Recent epidemiological evidence suggests that even in the midst of the "terrible twos," frequent/severe oppositional-defiant behaviors (ODBs) are not common among toddlers and hence may be indicative of a significant opposition-defiance problem. The main objective of this study was to obtain a maximum likelihood estimate of the…

Exposure to physical violence is an unfortunate reality for many Canadian youth as it is associated with numerous negative psychosocial effects. The study aims to assist in understanding resilience in rural Canadian youth exposed to physical violence. This is accomplished by identifying the importance of protective factors, as measured by the…

Three complementary models of how peer relationship problems (exclusion and victimization) and aggressive behaviors relate to prospective levels of internalizing problems are examined. The additive risks model proposes that peer problems and aggression cumulatively increase risks for internalizing problems. The reciprocal risks model hypothesizes…

Several authors consider high and frequent conflicts between friends during childhood as a serious risk for subsequent conduct problems such as generalized physical aggression toward others (e.g., Kupersmidt, Burchinal, & Patterson, 1995; Sebanc, 2003). Although it seems logical to assume that friendship conflict could have some negative…