Because children and young teenagers usually associate in same-sex groups, psychological research concerned with adolescent aggression has often concentrated on within-sex relationships. However, during adolescence, boys and girls increasingly interact socially. This paper reports a study of boy-to-girl aggression as perceived by girls, boys and their teachers. Focus group discussions were cond...

The aim of this study was to investigate whether body mass index (BMI), eating habits and sedentary behaviours were associated with sleep duration among Kuwaiti adolescents. The study is part of the Arab Teens Lifestyle Study (ATLS), which is a school-based cross-sectional multi-center collaborative study. A sample of 906 adolescents (boys and girls) aged 14-19 years was randomly selected from ...

Three-thousand, eight-hundred and sixty-eight low-income American Negro boys and girls showed systematic permanent advancement in tooth emergence compared with 5788 low-income boys and girls of European ancestry. Further matched to within $160 per-capita yearly income, the Negro boys and girls evidenced a 0.30 standard deviation emergence advancement of non-uniform or “patterned” nature, with t...

In this study, the authors examined associations between preference- and reputation-based peer status and weight-related behaviors and cognitions for both adolescent boys and girls. Sociometric measures of peer like-ability and peer-perceived popularity, as well as self-reported measures of body size, dieting behavior, and weight-related cognitions were collected from a sample of 441 adolescent...

BACKGROUND The prevalence of vitamin D deficiency in the kingdom of Saudi Arabia is rising unexpectedly in every age group. Apart from several risk factors, the lack of awareness is posing a serious threat for low vitamin D levels in children as well. The aim of our study was to compare the knowledge and status of vitamin D in Saudi school children. METHODS Saudi students, 1188 boys (15.1 ± 2...

This study explores whether third graders verbalize gender differences in dominance in mixedand same-sex interaction. We tape-recorded the conversations of 43 pairs of Caucasian working-class children playing checkers in sameor mixed-sex conditions. Children appear to develop gender-differentiated speech styles. Boys brag and insult their opponents in both mixedand same-sex conditions more ofte...

OBJECTIVE To analyze the factors associated with sexual risk behavior in adolescent girls and boys in order to plan future school health interventions. METHODS A cross-sectional study with two-stage cluster sampling that included 97 schools and 9,340 students aged between 14 and 16 years old was carried out in 2005-2006 in Catalonia (Spain). For the survey, a self-administered paper-based que...

In this study, 43 lateral cephalometric radiographs from 20 boys and 23 girls subjects were used to determine the Holdaway soft tissue growth changes. Subjects with Class I occlusions, balanced skeletal profiles, normal growth and development, and no orthodontic treatment history were included in the investigation. The cephalometric measurements were carried out on the first and second radiogra...

Public-sector education in many countries in western and southern Asia, including Pakistan, is characterized by separate schools for boys and girls at the primary and secondary levels. We examine the case of Pakistan, where primary school enrollment among girls in rural areas is substantially lower than among children in urban areas and boys in rural areas, owing to lack of access to government...