The change detection task has been used in dozens of studies with adults to measure visual working memory capacity. Two studies have recently tested children in this task, suggesting a gradual increase in capacity from 5 years to adulthood. These results contrast with findings from an infant looking paradigm suggesting that capacity reaches…

Reviews the state of knowledge on adolescent sexual behavior in the following areas: (1) onset of sexual behavior as a function of cohort, gender, and ethnic differences; (2) biological, social, and cognitive processes underlying such behavior; (3) demographic trends in the use of contraceptives; (4) research problems; and (5) successful programs.…

Reviews evidence from preschool education programs to determine what impacts quality programs can have on poor children's intellectual and social competence. Reviews evidence from Head Start to determine whether preschool programs of national scope have produced the same effects as those produced by model programs. (Author/BJV)