This best-selling text pioneered the comparison of qualitative, quantitative, and mixed methods research design. For all three approaches, John W. Creswell and new co-author J.

David Creswell include a preliminary consideration of philosophical assumptions, key elements of the research process, a review of the literature, an assessment of the use of theory in research applications, and reflections about the importance of writing and ethics in scholarly inquiry. New to this Edition: Updated discussion on designing a proposal for a research project and on the steps in designing a research studyAdditional content on epistemological and ontological positioning in relation to the research question and chosen methodology and methodAdditional updates on the transformative worldviewExpanded coverage on specific approaches such as case studies, participatory action research, and visual methodsAdditional information about qualitative and quantitative data analysis, social media, online qualitative methods, and mentoring and reflexivity in qualitative methodsIncorporation of action research and program evaluation in mixed methods and coverage of the latest advances in the mixed methods fieldAdditional information about causality and its relationship to statistics in quantitative methodsIncorporation of writing discussion sections into each of the three methodologiesAn invaluable guide for students and researchers across the social and behavioural sciences.