Doing Triangulation and Mixed Methods

This book shows you not just how to use triangulation as a strategy of quality management, but also how to use it as an approach to designing and doing qualitative research in a more comprehensive way. Flick links triangulation with current debates about using mixed methods, and outlines their potential for extending qualitative research, addressing questions such as how such research can benefit from integrating quantitative (mixed methods), or from working more generally with more than one approach (triangulation).

Uwe Flick is Senior Professor of Qualitative Research in Social Science and Education at the Freie Universität Berlin, Germany. He is a trained psychologist and sociologist and received his PhD from the Freie Universität Berlin in 1988 and his Habilitation from the Technical University of Berlin in 1994. He has been Professor of Qualitative Research at Alice Salomon University of Applied Sciences in Berlin, Germany and at the University of Vienna, Austria. Previously, he was Adjunct Professor at the Memorial University of Newfoundland in St. John’s, Canada; a Lecturer in research methodology at the Freie Universität Berlin; a Reader and Assistant Professor in qualitative methods and evaluation at the Technical University of Berlin; and Associate Professor and Head of the Department of Medical Sociology at the Hannover Medical School. He has held visiting appointments at the London School of Economics, the Ecole des Hautes Etudes en Sciences Sociales in Paris, at Cambridge University (UK), University of Lisbon (Portugal), Institute of Higher Studies in Vienna, in Italy and Sweden, and at the School of Psychology at Massey University, Auckland (New Zealand). His main research interests are qualitative methods, social representations in the fields of individual and public health, chronical illness and vulnerability in fields like youth homelessness, peer relations or migration, and technological change in everyday life. He is the author of Introducing Research Methodology: A Beginner’s Guide to Doing a Research Project (4th edn, London: Sage: 2025) and editor of A Companion to Qualitative Research (London: Sage, 2004) and The Psychology of the Social (Cambridge: Cambridge University Press, 1998). As his most recent publications, he has written Designing Qualitative Research (2nd edn, London: Sage, 2018), Doing Grounded Theory (London: Sage, 2018), Doing Triangulation and Mixed Methods (London: Sage, 2018), and Managing Quality in Qualitative Research (2nd edn, London: Sage, 2018) and Doing Interview Research – The Essential How To Guide (London: Sage, 2022). He edited The SAGE Handbook of Qualitative Data Analysis (London: Sage, 2014), The SAGE Qualitative Research Kit (2nd edn, London: Sage, 2018), The SAGE Handbook of Qualitative Data Collection (London: Sage, 2018) and The SAGE Handbook of Qualitative Research Design (London: Sage, 2022) and The SAGE Handbook of Qualitative Research Quality (London: Sage, 2025).