Socio-emotional school behavior and learning are both fundamental aspects of children's development influenced by cognitive control processes named Executive Functions (EF). Yet, research on school-age children has often focused on the relationship between EF and learning skills overlooking that of EF and school behavior, which has usually been…

Developmental delays in cognitive flexibility early in elementary school can potentially increase vulnerability for subsequent externalizing and internalizing psychopathology. The first goal of the current study was to identify latent subgroups of children characterized by different developmental trajectories of cognitive flexibility throughout…

According to the Center for Disease Control and Prevention (CDC) and other researchers, the prevalence of Attention Deficit and Hyperactivity Disorder (ADHD) diagnoses among school-aged children has gained the attention of researchers. Due to the large amount of time children spend in the school context, researchers have found that teachers play a…

This study focused on associations between children's socioemotional development (prosocial behaviour, internalizing and externalizing problems) and parenting styles (affection, behavioural control, and psychological control), and the moderating role of children's social withdrawal (as a temperamental characteristic) in these associations.…

Children's poor social-emotional functioning has been an increasing concern prior to and amidst the COVID-19 pandemic. Childhood and adolescence are critical stages of life where they acquire key cognitive and social-emotional skills that shape their future mental health. When a student's social-emotional health suffers, so do their relationships,…

Income disparities in children's academic and behavioral skills have grown larger over the past 50 years. At the same time, economic segregation across communities has increased, raising questions regarding the role of community factors in explaining income gaps in children's functioning. Combining geospatial data with longitudinal survey data…

We analyzed two nationally representative, longitudinal data sets of U.S. children to identify risk factors for persistent mathematics difficulties (PMD). Results indicated that children from low socioeconomic households are at elevated risk of PMD at 48 and 60 months of age, as are children with cognitive delays, identified developmental delays…

This longitudinal study investigated the associations among children's externalizing problems, task-avoidant behavior, and academic performance in early school years. The participants were 586 children (43% girls, 57% boys). Data pertaining to externalizing problems (teacher ratings) and task-avoidant behaviors (mother and teacher ratings) were…

This qualitative, analytical study at an International Baccalaureate school explored third grade teachers' perceptions of three specific innovative teaching strategies: innovation skills needed by third grade students; barriers and challenges that exist when teaching 21st Century skills; and skills needed by teachers to teach innovation skills.…

We recently proposed the Creative Reasoning Test (CRT), a test for reasoning in ill-defined problem spaces. The test asks children who first performed the Standard Progressive Matrices test (SPM) to next generate an SPM-style test item themselves. The item is scored based on different aspects of its complexity. Here we introduce a method to…

Child sleep and adjustment research with community samples is on the rise with a recognized need of explicating this association. We examined reciprocal relations between children's sleep and their internalizing and externalizing symptoms using 3 waves of data spanning 5 years. Participants included 176 children at Time 1 (M = 8.68 years; 69%…

This manuscript describes a research project designed to examine the relative effectiveness of a two non-function-based interventions (differential reinforcement of other behavior and self- monitoring) for decreasing problem behavior in a general education classroom for three students whose problem behaviors were hypothesized to be functionally…

The purpose of this study was to determine whether there are different growth trajectories of arithmetic strategies and whether these trajectories result in different achievement outcomes. Longitudinal data were collected on 240 students who began the study as 2nd graders. In the 1st year of the study, the 2nd-grade students were assessed on…

Data from the National Institute of Child Health and Human Development (NICHD) Study of Early Childcare and Youth Development (N = 1,364) were used to investigate children's trajectories of academic and social development across 1st, 3rd, and 5th grades. Hierarchical linear modeling was used to examine within- and between-child associations among…

After the onset of formal schooling, little is known about the development of children's understanding of the arithmetic concepts of inversion and associativity. On problems of the form a+b-b (e.g., 3+26-26), if children understand the inversion concept (i.e., that addition and subtraction are inverse operations), then no calculations are needed…