Retrospective studies indicate 2 major classes of autism spectrum disorder (ASD) onset: early and later, after a period of relatively healthy development. This prospective, longitudinal study examined social, language, and motor trajectories in 235 children with and without a sibling with autism, ages 6-36 months. Children were grouped as: ASD…

This paper examined associations between mothers' work schedules and children's cognitive outcomes in the first 3 years of life for approximately 900 children from the National Institute of Child Health and Human Development Study of Early Child Care. Both the timing and duration of maternal nonstandard work schedules were examined. Although…

Examined contributions of dimensions of maternal responsiveness to timing of milestones in early expressive language development. Found that maternal responsiveness at 9 and 13 months predicted timing of language milestones over and above children's observed behaviors. Responsiveness at 13 months was a stronger predictor of timing than…