The importance of the studied problem is determined by the fact that the influence of the deviant environment on society, the spread of its morality, a psychological "exposure" of a less stable part of the population, that is teenagers and young adults, all this is--a reality of the contemporary social situation. The study of problems…

The nature of adolescent trait change appears less dictated by are-related components than by the type of social change patterns which are setting the environmental milieu for adolescents of all ages over a given period of time. (Authors)

Findings of a study which tests cross culturally an American model of self concept formation process indicate that: "In schools where socioeconomic heterogeneity is greater, meritocratic criteria predominate but in schools ...populated predominantly by lower socioeconomic populations, ascriptive criteria tend to play a much greater role..." in…

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…