Research methods in human computer interaction Research Methods in Human Computer Interaction is a comprehensive guide to performing research and 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 the University of Washington the University of Toronto HiOA (Norway) KTH (Sweden) Tel Aviv University (Israel) and many others. 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 diaries physiological measurements case studies crowdsourcing and other essential elements in the well informed HCI researchers toolkit. Continual technological evolution has led to an explosion of new techniques and a need for this updated 2nd edition to reflect the most recent research in the field and newer trends in research methodology. This revision contains updates throughout including more detail on statistical tests coding qualitative data and data collection via mobile devices and sensors. Other new material covers performing research with children older adults and people with cognitive impairments.