Focused on increasing the credibility of research and evaluation, the Fourth Edition of Donna M. Mertens's comprehensive Research and Evaluation in Education and Psychology: Integrating Diversity with Quantitative, Qualitative, and Mixed Methods incorporates the viewpoints of various research paradigms into its descriptions of these methods. Providing specific advice on conducting research in culturally complex communities, the new edition has been updated to align with the American Psychological Association and the National Council of Accreditation of Teacher Education accreditation requirements. Approximately sixty percent of the content in the Fourth Edition is new, updated with numerous contemporary examples, making this book one of the most comprehensive, accessible, and practical methods books available.