The aim of this study was to investigate the role of social capital assessed in early adulthood in linking self-control in childhood with psychological and social functioning in middle age. Data collected at ages 8, 27, and 42 years were based on the Jyvaskyla Longitudinal Study of Personality and Social Development (159 females, 177 males).…

The predictive relation between neonatal behavior and temperament at 24 months was examined for 67 infants selected from the full socioeconomic status (SES) distribution. Initial ratings were made when the infants were one to four days old. Irritable neonates were rated as more upset, less attentive to stimuli, and less responsive to the staff at…

This study was designed to investigate aspects of childhood social functioning in early interaction and socialization patterns of normal families. Sixteen families with a child between 1 and 3 years of age, and a second child born when the study began, were observed over a 2-year period. Intelligence tests were administered to both children when…