This 1978 report of the Family Impact Seminar consists of: (1) an interim summary of conclusions reached by the seminar members as a group, (2) staff papers on the theoretical bases and evolving framework for family impact analysis, and (3) plans for pilot family impact statements. Chapter 1, reflecting the judgment of the seminar as a whole, is divided into sections on working definitions, values on which the work of the seminar is based, and preliminary findings which shape the direction of future work. Chapter 2 describes (1) the ecological perspective from which the values, preliminary findings, and conceptual framework of the seminar emerge, (2) the evolving framework and checklist for family impact analysis; and (3) problems encountered in attempts to use federally collected data, and the framework currently used to guide the fact-finding efforts of the seminar. Chapter 3 discusses current activities and plans for developing pilot family impact statements on government as employer and public foster care. The appendix includes a bibliography of books and articles, a list of family study centers which focus on public policies and families, and a list of individuals in state or local government who are interested in experimenting with the family impact idea. (Author/CM)