A study conducted in two types of laboratory settings and one school setting tested a model of the development of emotional expression. The model included: (1) societal, peer, and family influences; (2) self-factors, such as physiological, affective, motivation, cognitive, and personality variables; and (3) self-mediators, which act as filters…

A systems perspective on the development of disruptive behavioral disorders is presented and discussed with an emphasis on correlated constraints. The concept of correlated constraints suggests that behavior development involves the interconnected contributions of multiple factors working together as a system. Implications are considered in…

Studies patterns of computer use based on data from the National Science Foundation's Longitudinal Study of American Youth in which 7th- and 10th-grade students were surveyed for five consecutive years. Highlights include parental backgrounds; socioeconomic status; parental attitudes; student attitudes; gender differences; computer ownership; and…