Abstract
Despite the prevalence of religiousness and spirituality among adolescents, little is known about the psychology of adolescent religious and spiritual development. The purpose of this article is to explain how scholars within the discipline of developmental psychology have begun to approach the topic. Specifically, the article details how developmental theory advances understanding of religious and spiritual development and overviews developmental methods that enable rigorous examination of the structure and function of adolescent religious and spiritual development. A Relational Developmental Systems metatheoretical approach, emphasizing longitudinal methods, is utilized to highlight ideographic and nomothetic aspects of adolescent religiousness and spirituality. Examples of theoretically and methodologically cutting-edge developmental research provide illustration. In conclusion, the article shows that developmental psychology provides insight toward a comprehensive approach to the study of religious and spiritual development and broadens the perspectives of other disciplines, while relying on other disciplines to deepen developmentalists’ research.