This longitudinal study investigated the influence of maturation on physical self-perceptions and the relationship with physical activity in early adolescent girls (N = 150; mean age = 12.79 plus or minus 0.31). Physical characteristics were measured and participants completed the Physical Activity Questionnaire for Children, the Children and…

The transition from elementary to middle school is a significant period of change for adolescents and is remarkable for several reasons, including the opportunity for new experiences and the potential for other developmental changes to occur simultaneously. Existing literature on transition includes both positive and negative outcomes for…

This study considered the interrelationships among biological maturation and its physical correlates, social physique anxiety, and appearance-related physical self-perceptions in 113 adolescent female figure skaters participating in solo (n = 73) or partner contexts (n = 40). Participants were interviewed about their menarcheal status, underwent a…

Background: Previous studies suggest that failure to thrive in infancy may be associated with adverse sequelae in childhood. Although cognitive abilities have been extensively investigated, little systematic research is available on other aspects of development. Methods: Eighty-nine children who failed to thrive as infants and 91 controls were…

The middle years of childhood are challenging for both children and their parents, as children master skills and develop behaviors that will strongly influence their later health and well-being. This parenting manual offers up-to-date information and guidelines on key emotional, physical, and behavioral issues that parents of school-age children…