This document reports on Phase II of a 2-year research project. The first phase had investigated the effects of socioeconomic mix on the cognitive and social development of disadvantaged preschoolers. The objectives of Phase II were (1) to continue assessment of effects on the disadvantaged subjects over a 2-year span during which there were four…

This study followed 515 4-year-olds from Head Start entry to exit to investigate their social and behavioral skills and the impact of these skills on school readiness outcomes. Results indicated that, on average, social skills improved across the preschool year, while behavior problems remained relatively stable. Social skills and behavior…