Within-Family Differences Study 
Welcome to the Within-Family Differences Study Web Site! The Within-Family Differences Study (WFDS) is a mixed-method longitudinal project focused on understanding the relationship between parents and their adult children, and the ways in which these ties affect the well-being of both generations. Our goals are to contribute to the scientific study of intergenerational relationships and provide a basis for the development of strategies for practitioners to employ when working with later-life families.