OverviewThis book is the longest-standing text in the field of social work research and evaluation. Since the first edition in 1981, it has been designed to provide beginning graduate social work students the basic methodological foundation they need in order to successfully complete more advanced research courses that focus on single-system designs or program evaluations. Its content is explained in extraordinarily clear, everyday language. New to this editionContains five new chapters, including The Mixed Methods Approach, Becoming an Evidence-Based Practitioner, Designing Measuring Instruments, Qualitative Content Analysis, and Qualitative Data Analysis: A Theoretical ApproachExtensively revised, updated, and edited chapters. Group Research Designs is now structured around one-group designs and two-group designs, rather than on the three knowledge-level categories: exploratory, descriptive, and explanatory. This reorganization makes it much easier for the students to understand the logic of research designs.Provides students with a solid rationale of why the positivistic and interpretive research approaches within the scientific method have value, in addition to showing that the greatest benefit that the research enterprise can bring to our profession is combining both approaches in a single research study.Emphasizes generalist social work practice, and fully complies with the Council on Social Work Education's research requirements in this respect.Uses numerous examples throughout the text in an effort to emphasize the link between practice and research within generalist social work settings.Contains an extensive discussion on human diversity and ethics.Includes numerous new illustrations to complement and expand on the chapters: these illustrations present interesting research examples; provide additional aids to learning; and offer historical, social, and political contexts of social work research.Student-oriented companion website enhances the learning experience for students, and the ease of use for instructors.