The Fathering Indicators Framework (FIF) is an evaluation tool designed to help researchers, practitioners, and policymakers conceptualize, examine, and measure change in fathering behaviors in relation to child and family well-being. This report provides a detailed overview of the research and theory informing the development of the FIF. The FIF is divided into six indicator categories: (1) father presence; (2) caregiving; (3) child social competence and academic achievement; (4) cooperative parenting; (5) healthy living; and (6) material and financial contributions. Following an introduction, the report is presented in seven sections. Six sections present a detailed discussion of each indicator category, summarizing what is known about father involvement and fathering behaviors in relation to the category. The seventh section considers how the indicator framework might be used to inform research, practice, and policy, and provides information on applying the framework. Appended are data sources and data collection instruments. (Contains 175 references.) (KB)