The intended audience of this book, as indicated in its title, is health researchers. Health researchers are not limited to scientists pursuing a research career. Health research can and should be pursued by a broad range of people. Health research can be simply defined as the process for systematic collection, description, analysis and interpretation of data that can be used to improve the health of individuals or groups. Health professionals, health administrators, health policy-makers and nongovernmental organizations, among others, can and should use the scientific method to guide their work for improving the health of individuals and communities.
