Self-reports and observations of the naturally occurring behavior of adolescents were made to investigate friendship patterns. The study was conducted during a week-long summer camp for children of university alumni attending classes. A total of 20 female and 10 male youths, ranging in age from 12 to 18 years, participated. Self-report data…

This document provides data from an ongoing longitudinal study of the degree of continuity in individual development over time and describes the complexities involved in efforts to determine the nature of individual continuity. Findings from the Minnesota Longitudinal Study of children in a day camp provide evidence for continuity in individual…