Developmental processes are embedded in social contexts, such as with family members. Adolescent development involves significant reorganization of the parent-adolescent relationship, which is fundamental to the continued psychosocial development of both the adolescent and the parent. In this article, we introduce the model of parent-adolescent dyads as temporal interpersonal emotion systems (TIES), which specifies the emotion-related processes at multiple time scales that are implicated in the psychosocial development of both individuals. Building off our previous work, we outline study designs to examine development in parent-adolescent TIES, which will lead to important new directions in research on developing adolescents and parents.