Research Methods in Human-Computer Interaction, Second Edition, is a comprehensive guide on performing research that is essential reading for both quantitative and qualitative methods. Since the first edition was published in 2009, the book has been adopted for use at leading universities around the world, including Harvard University, Carnegie-Mellon University, and the University of Washington. . Chapters cover a broad range of topics relevant to the collection and analysis of HCI data, going beyond experimental design and surveys to cover ethnography, time diaries, physiological measurements, case studies, and other essential elements in the well-informed HCI researcher's toolkit. . Continual technological evolution has led to an explosion