Reports the third wave of a longitudinal study that followed 106 15-year-olds from their last compulsory year at school for 22 months. Study shows that this is a period of considerable flux in smoking behavior. Highlights the role of friendship groups and social contexts and suggests that smoking prevention programs should be developed to meet the…

This article reviews 46 experimental studies on behavioral and developmental outcomes associated with prenatal exposure to illicit drugs. Only half of the 460 individual outcomes significantly indicated adverse effects of prenatal exposure. The greatest number of these outcomes was for infants younger than one month, with relatively few outcomes…

Data from a 20-year longitudinal study of 125 males and 126 females born to Black teenage mothers in a Baltimore hospital between 1966 and 1968 were analyzed to identify early childhood, middle childhood, and early adolescence determinants of functional literacy. All 251 subjects were interviewed in 1987, and 202 of them completed a document…