Using a sample of 77 10th grade boys, the researchers studied the relationships between the mental abilities measured by the Differential Aptitude Tests and cerebral dominance (CD: the extent to which one hemisphere of the brain dominates the other for control of behavior). The surprise finding was that CD was negatively related to spatial…

This research in the application and synthesis of psychological stage theory to drug abuse education was designed to promote growth in decision making capacity of 11- and 12-year-old children. Specifically, the purpose of this research was to intervene in this developmental period of transition from concrete to formal operational thinking capacity…

Research programs of the human learning and behavior branch of the National Institute of Child Health and Human Development (NICHHD) are described in five sections of this document. The specific programs conducted in the areas of learning and cognitive development, development of communicative abilities, biological bases of behavioral development,…