Background: Within the same school class, it is usual to find children who differ in age by almost a full calendar year. Although associations between being relatively young and poor academic outcomes are well documented, and relatively consistent, the associations between being relatively young and psychosocial outcomes are less clearly…

The last decades of neuroimaging research has revealed atypical development of intrinsic functional connectivity within and between large-scale cortical networks in autism spectrum disorder, but much remains unknown about cortico-subcortical developmental connectivity atypicalities. This study examined cortico-striatal developmental intrinsic…

Anger is a central characteristic of negative affect and is relatively stable from infancy onward. Absolute levels of anger typically peak in early childhood and diminish as children become socialized and better able to regulate emotions. From infancy to school age, however, there are also individual differences in rank-order levels of anger. For…

Evidence from physiological studies has been integral in many causal theories of behavioral and emotional problems. However, this evidence is hampered by the heterogeneity characterizing these problems. The current study adds to prior work by identifying neuro-physiological markers associated with heterogeneity in conduct problems (CP),…

Children in late elementary and middle school tend to form friendships with same-race peers. Yet, given the potential benefits of cross-race friendships, it is important to understand the individual and contextual factors that increase the likelihood of cross-race friendship over time. Guided by contact hypothesis and systems theory, we examine…

Computeen, a preventive technology and psychosocial skills development program for at-risk adolescents, was designed to improve computer skills, self-esteem, and school attitudes, and reduce behavior problems, by combining elements of community-based and empirically supported prevention programs. Fifty-five mostly Latino adolescents from 12 to 16…

This study tested the association between mother's early age at first birth and various life outcomes for her children in later adolescence and early adulthood. Data were analyzed from the Rochester Youth Development Study, an ongoing panel study of adolescents enrolled in seventh or eighth grade in Rochester Public Schools in 1988 ("N"=729). Boys…

Individuals with Down syndrome (n=49) were assigned to three groups: those showing cognitive deterioration, those comparable in age, and those not showing cognitive deterioration but younger. Those experiencing cognitive deterioration were less likely to receive day services, had more impoverished life experiences, and required more support.…

Analyzed individual developmental trajectories of disruptive behavior problems (DBP) between 3.5 and 6.0 years for children of adolescent mothers. Found that DBP decreased with age. Boys and children of more depressed/anxious mothers exhibited higher levels of DBP. Maternal negative control was associated with level of DBP and change rate, and…

This report presents data from the 1988 National Health Interview Survey of Child Health, which was conducted by the National Center for Health Statistics. The data concern the proportions of young people (n=17,110) 17 years of age and under who were reported by their parents to have had: (1) a delay in development; (2) a learning disability; or…

Noting that humans develop according to a genetically encoded timeline and that departure from the timeline limits human potential, this book provides an illustrated practical guide to intervention to help children's bodies work as they should, to nurture children along their developmental timeline, to help children learn "from the inside…