Used a longitudinal sibling research design and a large, nationally representative sample of 15- to 22-year-old siblings to study shared and unshared environmental influences on delinquency. Although no unshared family environmental influences were found for sisters and mixed-sex siblings, they may have existed for brothers. Data suggested…

Examined the influence over time of demographic variables and perceived family and friend support and school climate on changes in psychological adjustment among Black, Latino, and Asian American adolescents from low-income families. Found a greater increase in self-esteem in students reporting more positive perceptions of school climate and,…

Applied a person-centered approach to childhood personality development in 28 diverse samples of 3- to 6-year-olds studied over 6 years. Identified resilient, overcontrolled, and undercontrolled personality types. Found that the undercontrolled personality type related to intellectual decline over 6 years. The number of family risks predicted…

The longitudinal "Competent Children" project is intended to discover what impact children's family resources and early childhood education experiences have on the development of children's cognitive, social, communicative, and problem-solving competencies. This report details findings of the first stage of the project. The report…

The longitudinal "Competent Children" project is intended to discover what impact family resources and early childhood education experiences have on the development of children's cognitive, social, communicative, and problem-solving competencies. This booklet summarizes the main findings of the first stage of this project. The report…