Here is a report of a systematic study based on interviews with 120 school principals that addresses questions about the utilization of knowledge from social research. It offers evidence that challenges allegations about the "awful reputation" of educational research and its supposed lack of impact.The Untested Accusation:·Describes the methods used in the investigation·Provides reviews of related work with social research impact·Defines major terms·Provides a conceptual model for thinking about the problem·Provides both quantitative evidence and verbatim quotes from principals ·Compares research knowledge use among public, private, and independent schools in two national contexts: the United States and Australia ·Discusses various strategies that can be used to improve the impact of educational researchFindings from this study details:·How principals are exposed to research knowledge and their attitudes concerning its use ·The types of research knowledge with which principals are familiar·Reports of research knowledge use in various schoolsA summary of major findings and a discussion of conclusions and their implications are provided. This report concludes that educational research already has considerable impact and that school principals play active roles in converting that knowledge into innovative policies and practices. For teachers, administrators, school board members, and others interested in educational and social research.