This title offers an engaging and comprehensive overview of how American courts use research and testimony from the social sciences in reaching their decisions. It incorporates Daubert v. Merrill Dow Pharmaceuticals, Inc., the United States Supreme Court's landmark decision on scientific evidence. In addition, new Daubert-based cases are integrated throughout the text. The eighth edition offers a completely revised and up-to-date treatment of the increasing critical role that social science research plays in both federal and state judicial opinions.