Differentiation of intelligence refers to changes in the structure of intelligence that depend on individuals' level of general cognitive ability (ability differentiation hypothesis) or age (developmental differentiation hypothesis). The present article aimed to investigate ability differentiation, developmental differentiation, and their…

Children's exposure to book reading is thought to be an influential input into positive cognitive development. Yet there is little empirical research identifying whether it is reading time per se, or other factors associated with families who read, such as parental education or children's reading skill, that improves children's achievement. Using…

Over half of the children in the U.S. experience adversity early in childhood. These experiences, along with conditions in their families and neighborhoods, have profound developmental effects. The bioecological model of development includes these proximal contexts in a theory of development that incorporates the threats and supports present in…

There is widespread belief that exposure to television has harmful effects on children's cognitive development. Most studies that point to a negative correlation between hours of television watching and cognitive outcomes, fail to establish causality. Using the National Longitudinal Survey of Youth (NLSY) we study young children between 5 and 10…

This article examines the mechanisms linking health to the educational attainment of adolescents. In particular, it investigates the role of cognitive/academic achievement and a variety of psychosocial adjustment factors in explaining this relationship. Using data from the National Longitudinal Survey of Youth 1997 cohort (NLSY97), we estimate…

Head Start is a federally funded preschool program for poor children designed to help close the gap between those children and their more advantaged peers before they begin public schooling. Given that Head Start appears to have positive long-run impacts on its recipients, a natural and important next question to ask is: What are the channels…

Some scholars have suggested that it is the "most advantaged" children, the children of high income households or who have high cognitive ability, who are negatively affected by early maternal employment. If this were true, less advantaged children would not be affected as strongly. Findings indicate that in terms of effects on cognitive…

Secondary analyses indicated that maternal employment in children's first year had detrimental effects on cognitive and behavioral development. Grandmother care was beneficial for the cognitive development of children in poverty. For behavioral development, mother care was beneficial for boys and babysitter care for girls. (BC)

Children who experience multiple transitions in family structure may face worse developmental outcomes than children raised in stable, two-parent families, and perhaps even worse than children raised in stable, single-parent families--a point denoted in much prior research. Multiple transitions and negative child outcomes, however, may be…

Using data from the 1996 National Longitudinal Survey of Youth (NLSY79) merged mother-child sample, we investigate the impact of two family events, parental divorce and the birth of a sibling, on the cognitive stimulation and emotional support provided to children in the home. We use fixed-effect regression techniques to control for unmeasured…

In accordance with McLoyd's model of African American children's development, we examined the linkages among family income, maternal psychological distress, marital conflict, parenting, and children's outcomes in early and middle childhood, using a sample of 591 African American children from the National Longitudinal Survey of Youth. Income…

Analysis of data from the National Longitudinal Survey of Youth shows that long-term poverty has substantial influences on both cognitive ability and achievement, but time patterns differ. Childhood is a much more crucial period than adolescence for development of cognitive ability, but adolescent achievement is influenced more by adolescent…

Examined the impact of day-care participation during the first 3 years of life on the cognitive functioning of 867 school age children who participated in the National Longitudinal Survey of Youth. Found that children from impoverished homes who started day care before age one had higher reading scores than children from similar homes who did not…

Two cause indicator models were formulated to link items of the Home Observation for Measurement of the Environment--Short Form to the Peabody Picture Vocabulary Test--Revised. These models were tested with data from the National Longitudinal Survey of Youth (506 and 345 children), and a final model was developed. (SLD)

In this paper, we examine the effect of income on child development in the United States and the United Kingdom, as measured by scores on cognitive, behavioral, and social assessments. In line with previous results for the United States, we find that for both countries income generally has an effect on child development that is positive and…