Romantic Relationships from Adolescence to Young Adulthood: Evidence from the National Longitudinal Study of Adolescent Health.

Theories on romantic relationship development posit a progression of involvement and intensity with age, relationship duration, and experience in romantic relationships. Using the National Longitudinal Study of Adolescent Health, this study tests these propositions by considering relationship type and patterns of relationships over the course of adolescence and their influence on relationship formation in young adulthood. Findings indicate that relationships become more exclusive, dyadic, of longer duration, and more emotionally and sexually intimate over the course of adolescence. Moreover, relationship experience in adolescence is associated with an increased likelihood of cohabitation and marriage in young adulthood. These findings indicate that instead of being trivial or fleeting, adolescent romantic relationships are an integral part of the social scaffolding on which young adult romantic relationships rest.