This fully updated fourth edition of this popular guide introduces readers to the collection, uses, and interpretation of statistical data in the social sciences. Since it has been nearly 15 years since the third edition first appeared, this is a heavily updated edition. Separate chapters are the national economy, wealth, income, poverty, labor, business statistics, and public opinion polling, with a concluding chapter devoted to the common problem of ambiguity in social science statistics. Each chapter includes multiple case studies illustrating the controversies, overview of data sources including web sites, chapter summary and a set of case study questions designed to stimulate further thought, and detailed notes providing references for all the controversies discussed in the chapter.