Anxiety and conduct problems covary, yet studies have not explored the genetic and environmental origins of this association. We analyzed parent-reported anxiety and conduct problems in 6,783 pairs of twins at 2-, 3-, and 4-years of age. As anxiety and conduct problems were fairly stable across the three ages (average 1-year correlation was .53), ratings from all three were combined. The aggreg...

Purpose. The aim of the study was to evaluate and compare the physical activity patterns of preschoolers aged 6–7 years. Methods. A sample of 221 preschool children (116 boys and 105 girls) aged 6 (5.92 ± 0.30) and 7 (6.91 ± 0.25) years was recruited. Physical activity was assessed over 7 consecutive days by using pedometers to determine step counts (steps/day). Accrued anthropometric data incl...

On average, men outperform women on mental rotation tasks. Even boys as young as 4 1/2 perform better than girls on simplified spatial transformation tasks. The goal of our study was to explore ways of improving 5-year-olds' performance on a spatial transformation task and to examine the strategies children use to solve this task. We found that boys performed better than girls before training a...

Abstract Aim Despite consensus that prevention and health promotion need to address gender aspects differences, not much is known about how boys girls in infancy (or their parents) make use of existing non-medical community programmes. The aim the study was therefore analyse extent which or parents distinct social circumstances participate respective Subject methods We conducted secondary analy...

Three studies examined the role of stereotype threat in boys' academic underachievement. Study 1 (children aged 4-10, n = 238) showed that girls from age 4 years and boys from age 7 years believed, and thought adults believed, that boys are academically inferior to girls. Study 2 manipulated stereotype threat, informing children aged 7-8 years (n = 162) that boys tend to do worse than girls at ...

Background Genetic impacts on handwriting legibility and speed, especially in early childhood, are not well understood. The present study used a 2D:4D ratio as a biological marker to investigate the associations between genetic factors with quality and speed of handwriting among the elementary school children. Ma...

BACKGROUND While healthy lifestyle habits are generally assumed to be important for high academic achievement, there has been little research on this topic among adolescents. The aim of this study was therefore to examine the associations between several lifestyle habits and academic achievement in adolescent girls and boys. METHODS The study included 2,432 Norwegian adolescents, 15-17 years ...

OBJECTIVE To identify shared risk and protective factors for purging, binge eating, and overweight. DESIGN Prospective cohort study. SETTING Population-based questionnaires of children and adolescents residing across the United States. PARTICIPANTS Girls (n = 6022) and boys (n = 4518), aged 11 to 17 years in 1998, in the ongoing Growing Up Today Study. MAIN EXPOSURES Putative risk and p...

The article contains the research of connections between measure coping strategies use, self-regulation system components formation and personal maturity in boys girls, students Humanities specialties junior courses higher education institutions. There was revealed that girls prefer different for with stress. Girls first all use escape-avoidance coping, lastly planning a solution to problem. Bo...

BACKGROUND Autism spectrum disorder (ASD) is diagnosed much less often in females than males. Emerging behavioral accounts suggest that the clinical presentation of autism is different in females and males, yet research examining sex differences in core symptoms of autism in affected children has been limited. Additionally, to date, there have been no systematic attempts to characterize neuroan...