Longitudinal data from 746 adolescents in Toronto, Canada (54% females), was gathered in eight waves over seven years (1995 through 2001), beginning when the youths were 10 to 12 years old (mean age = 11.8, SD = 1.2 years). Five trajectories of substance use were identified: chronic-high, childhood onset-rapid high, childhood onset-moderate,…

Maternal support is known as a protective factor during infancy, childhood, and adolescence. However, less is known about the conditions leading to support-seeking behaviors toward mothers in early adolescence. In comparison with younger children, it is assumed that the specific nature of these conditions changes with continuing cognitive…

The associations between self-perception and attachment orientations and three aspects of children's competence within friendships were examined: "Managing conflict", "seeking support", and "giving support". Questionnaires were completed by 260 4th- and 5th-grade students. Homeroom teachers reported on the children's…

Self-representations of 1st-, 3rd-, and 5th-graders' social and academic competence were examined in relation to children's personal (grade/age); family (attachment to parents, marital conflict, anxiety related to conflict); and school (teacher appraisals) contexts. Children who reported higher levels of security of attachment to parents and lower…