It should now be recognized that every child has at least five parallel ages: A "chronological" age, in years, months, and days: a "physiological" age, indicative of physical growth and maturity; a "mental" age, significant of intellectual capacity and ability; a "school standing," or "pedagogical"…

The purpose of this paper is to report the cross-sectional relationship between educational achievements and the "health status" of the rural South African children in the Ellisras Longitudinal Study (ELS). The study followed a cohort design where 1033 children (569 boys and 464 girls) aged 7-14 were randomly sampled from 11 primary…

Research findings: Growth across 6 months to 8 years of age, assessed at seven time points, for daily living and cognitive skills was compared for term (n = 122), very low birth weight (VLBW) children of low (n = 114) and high (n = 73) medical risk and lower socioeconomic status (SES). Dramatic declines in daily living skills were found for all…

Evaluations of early intervention for children facing biological and/or socioeconomic risk have tended to focus most directly on change in the child, treating family variables primarily as mediators of change. In contrast, the current study used developmental theory to articulate hypotheses that address one way in which a focus on the relationship…