Developmental scientists are often interested in subgroups of people who share commonalities in aspects of development; these subgroups often cannot be captured directly but instead must be inferred from other information. Mixture models can be used in these situations. Two specific types of mixture models, latent profile transition analyses and…

The positive youth development (PYD) perspective emphasizes that thriving occurs when individual [double arrow] context relations involve the alignment of adolescent strengths with the resources in their contexts. The authors propose that a key component of this relational process is the strength that youth possess in the form of self-regulatory…

Research has shown that a hallmark of adolescent development is the growing capacity to interpret human intentionality. In this chapter, the authors examine developmental change in this capacity, which they have termed interpretive thought, in two types of stories, family and autobiographical, told by Canadian youth aged ten to seventeen years.…

Self-regulation represents a core aspect of human functioning that influences positive development across the life span. This chapter focuses on the action-control model, a key facet of self-regulation during childhood and early adolescence. The authors discuss the development of action-control beliefs, paying particular attention to their…

We summarize progress in the developmental study of coping, including specification of a multilevel framework, construction of definitions of coping that rely on regulation as a core concept, and identification of developmentally graded members of families of coping. We argue that these accomplishments are a prelude to the real tasks of a…

Examines the effect of having a sibling or a dating partner on adolescents' relationships with others, focusing on the social rules used in relationships with peers, siblings, and parents. Data support a model of relationship management using siblings as stepping-stones of egalitarian peer features to the world of friends and authoritative parent…

Reports findings on changes in adolescent-crowd orientations using national data from the National Education Longitudinal Study of 1988. Categorizes high school students into five prototypical peer-crowd orientations at tenth and twelfth grade. Illuminates the change in students' peer crowd orientation by examining individual and relationship…