Data were analyzed from a population-based, longitudinal sample of 8,650 U.S. children to (a) identify factors associated with or predictive of oral vocabulary size at 24 months of age and (b) evaluate whether oral vocabulary size is uniquely predictive of academic and behavioral functioning at kindergarten entry. Children from higher…

Earlier results from the Jyvaskyla Longitudinal Study of Dyslexia showed that newborn event-related potentials (ERPs) of children with and without familial risk for dyslexia were associated with receptive language and verbal memory skills between 2.5 and 5 years of age. We further examined whether these ERPs (responses to synthetic consonant-vowel…

Activity of 50 children whose motility had been monitored by an electronic activity monitor when they were neonates was again monitored by an ambulatory microcomputer when they were four to eight years old. Results are consistent with evidence from several longitudinal studies suggesting that individual activity characteristics tend to persist…

This study presents research findings of a four year study intended to identify infant and family characteristics which, singly or in combination, predict developmental problems during preschool and school years. Predictors included a variety of measures of parental and neonatal biological conditions as well as measures of the quality of the…

This paper presents results of a preliminary study which evaluated medical birth data as potential predictors of developmental outcome, and developed and tested an instrument designed for this purpose. Forty low birthweight children, all of whom had experienced neonatal intraventricular hemorrhage, were evaluated at school age (66 months) on the…

This study evaluated the usefulness of perinatal medical status, environmental risk, and infant developmental status as predictors of low IQ at age 4 among 70 4-year-olds who had been in a neonatal intensive care unit at birth. It found family environment the most predictive, 18-month developmental assessments somewhat useful, and perinatal health…

To help predict physical, mental, and social behavior problems in school age children, this longitudinal study intended to identify the origins of dysfunction and the characteristics which put infants at high risk for future problems. The study provided background data for the development of an operational screening and assessment method. The…