The role of content in formal operations tasks was explored in research that systematically varied the content of tasks and children's performance by developmental level and socioeconomic status (SES). Subjects were 110 Icelandic 12-year-olds who had entered a longitudinal study when they were 7 years old. Two extreme ability groups of children…

This longitudinal study examined effects of family socialization on sociomoral reasoning in the context of the peer and parent-child relationships. Subjects were 121 urban Icelandic children. Social class was constructed as a multinominal measure defined by the nature of work, education, authority, and responsibility of the parents in the work…