Gender plays a role in adolescents' dietary behaviors as they transition to secondary school.

Little research explores how changes in adolescents' peer, family and school environments may influence dietary behaviors during the shift from elementary school to secondary school and whether boys and girls experience these changes in similar ways. Drawing on Bronfenbrenner's socio-ecological model and Ridgeway's gendered framework, thematic analysis of twenty-seven semi-structured interviews with parent-adolescent dyads reveals that changes in adolescents' peer, family and school environments affect dietary behaviors following the transition in gendered ways. Within the peer context, food facilitates friendships among girls.

Codevelopment of Healthy and Unhealthy Dietary Behaviors: A Dyadic Examination of Parenting Practices and Adolescent Characteristics.

Objective: To identify the pathways through which external, parental, and adolescent factors influence adolescents' motivation to adopt healthy dietary behaviors.

Methods: A total of 28 ethnically and socioeconomically diverse (25% White) families were interviewed in which adolescents (mean age = 12.7 years; 50% girls) and parents (mean age = 43.

Individual and Environmental Factors Associated with Participation in Physical Activity as Adolescents Transition to Secondary School: A Qualitative Inquiry.

The transition from elementary to secondary school is an emotionally and socially complex time when adverse behaviors appear, such as decreased levels of physical activity (PA). Behavioral and environmental factors that influence PA during this time are poorly understood. Therefore, we aimed to identify factors that influence PA as adolescents transition to secondary school.

Using item response theory to evaluate the Children's Behavior Questionnaire: Considerations of general functioning and assessment length.

Although the Children's Behavior Questionnaire (CBQ; Rothbart, Ahadi, Hershey, & Fisher, 2001) is the most popular assessment for childhood temperament, its psychometric qualities have yet to be examined using Item Response Theory (IRT) methods. These methods highlight in detail the specific contributions of individual items for measuring different facets of temperament. Importantly, with 16 scales for tapping distinct aspects of child functioning (195 items total), the CBQ's length can be prohibitive in many contexts.

Four minutes of in-class high-intensity interval activity improves selective attention in 9- to 11-year olds.

The amount of time allocated to physical activity in schools is declining. Time-efficient physical activity solutions that demonstrate their impact on academic achievement-related outcomes are needed to prioritize physical activity within the school curricula. "FUNtervals" are 4-min, high-intensity interval activities that use whole-body actions to complement a storyline.

Classroom-based high-intensity interval activity improves off-task behaviour in primary school students.

This study examined the effects of an acute bout of brief, high-intensity interval exercise on off-task classroom behaviour in primary school students. A grade 4 class (n = 24) and a grade 2 class (n = 20) were exposed to either a no-activity break or an active break that consisted of "FUNtervals", a high-intensity interval protocol, on alternating days for 3 weeks. No-activity days consisted of a 10-min inactive break while FUNterval days consisted of a 4-min FUNterval completed within a 10-min break from regular class activities.

Children in Institutional Care: Delayed Development and Resilience.

Children exposed to institutional care often suffer from "structural neglect" which may include minimum physical resources, unfavorable and unstable staffing patterns, and social-emotionally inadequate caregiver-child interactions. This chapter is devoted to the analysis of the ill effects of early institutional experiences on resident children's development. Delays in the important areas of physical, hormonal, cognitive, and emotional development are discussed.

A longitudinal study of the physical growth and health of postinstitutionalized Romanian adoptees.

In the present longitudinal study, the physical growth and health of 36 early-deprived postinstitutionalized Romanian orphans (ROs; 17 boys) adopted by Canadian families are documented. Data were collected for each child at three time points: at 11 months postadoption, at 4.5 years of age and at 10.