Satisfaction, Intimacy and Conflict in Canadian Couples: An Analysis of Change from Adolescence to Adulthood.

Romantic relationship qualities are likely to change from adolescence to adulthood. Therefore, we undertook a longitudinal study to examine changes in satisfaction, intimacy, and conflict over this period by simultaneously testing the effects of age, relationship length, and their interaction. These qualities were measured at nine-time points from ages 16 to 30 in a Canadian sample of 337 participants (62.9% women) who reported being in a romantic relationship at least once over this period. The results of multilevel analyses show that satisfaction, intimacy, and conflict decline with age but increase with relationship length. Moreover, age and relationship length were found to have a significant interactive effect on satisfaction and intimacy.