In recent years, interest has increased in preschool programs that promote low-income children's early learning and development. Although research in this area has focused mostly on 4-year-olds, a growing number of 3-year-olds attend publicly funded preschool. In fact, in Head Start--a federally funded early childhood education program--the…

This report presents exploratory impact findings for 3-year-olds from the Head Start CARES demonstration, a large-scale randomized controlled trial implemented in Head Start centers for one academic year across the country. The study was designed primarily to test the effects of the enhancements on 4-year-olds, but it also provides an opportunity…

Preschool has long been viewed as a way to promote low-income children's early learning and development. Some promising classroom-based strategies have been found to enhance preschool children's social, emotional, and behavioral competencies. Most of this research has focused on 4-year-olds, even as a growing number of 3-year-olds attend Head…

Examined the effects of two forms of organization of pretend play on children's behavior in the cognitive and affective domains as observed in a mixed-age environment: teacher-directed frontal play, with all children involved, and child-directed small group play. Found a significant increase in cognitive domain behavior during child-directed group…

Before 1970, no mixed-age groups existed in Swedish nursery schools. By 1991, 43 percent of children enrolled in nursery school were in mixed-age groups of ages 1 to 6 years, and 37 percent were in groups of children ages 3 to 6 years. Mixed-age groups are assumed to have advantages, including positive influences on learning and social…