Youre being asked to quantify usability improvements with statistics. But even with a background in statistics, you are hesitant to statistically analyze the data, as you may be unsure about which statistical tests to use and have trouble defending the use of the small test sample sizes associated with usability studies. The book is about providing a practical guide on how to use statistics to solve common quantitative problems arising in user research. It addresses common questions you face every day such as: Is the current product more usable than our competition Can we be sure at least 70% of users can complete the task on the 1st attempt How long will it take users to purchase products on the website This book shows you which test to use, and how provide a foundation for both the statistical theory and best practices in applying them. The authors draw on decades of statistical literature from Human Factors, Industrial Engineering and Psychology, as well as their own published research to provide the best solutions. They provide both concrete solutions (excel formula, links to their own web-calculators) along with an engaging discussion about the statistical reasons for why the tests work, and how to effectively communicate the results. Provides practical guidance on solving usability testing problems with statistics for any project, including those using Six Sigma practices Show practitioners which test to use, why they work, best practices in application, along with easy-to-use excel formulas and web-calculators for analyzing data Recommends ways for practitioners to communicate results to stakeholders in plain English Table of Contents Dedication Acknowledgements About the Authors Chapter 1: Introduction and How to Use This Book Chapter 2: Quantifying User Research Chapter 3: How Precise Are Our Estimates Confidence Intervals Chapter 4: Did We Meet or Exceed Our Goal Chapter 5: Is There a Statistical Difference between Designs Chapter 6: What Sample Sizes Do We Need Part 1: Summative Studies Chapter 7: What Sample Sizes Do We Need Part 2: Formative Studies Chapter 8: Standard Usability Questionnaires Chapter 9: Six Enduring Controversies in Measurement and Statistics Chapter 10: Wrapping Up Appendix Index
Cited By
- Zheng Z, Yan B and Shi J User Experience Analysis of Library Intelligent Book-Lending Cabinets Service Based on MOA Model༚Case Study of China Proceedings of the Eleventh International Symposium of Chinese CHI, (290-301)
- Federici S, Bifolchi G, Bracalenti M, Ansani A, Napoletti A, Lanzillotti R, Desolda G, Mele M, Borsci S, de Filippis M, Gaudino G, Amendola M, Cocco A, Doria A and Simonetti E eGLU-Box Mobile: A Smartphone App for Usability Testing by Italian Public Administration Webmasters Human-Computer Interaction, (64-79)
- Evin I, Hämäläinen P and Guckelsberger C (2022). Cine-AI: Generating Video Game Cutscenes in the Style of Human Directors, Proceedings of the ACM on Human-Computer Interaction, 6:CHI PLAY, (1-23), Online publication date: 25-Oct-2022.
- Blattgerste J, Behrends J and Pfeiffer T A Web-Based Analysis Toolkit for the System Usability Scale Proceedings of the 15th International Conference on PErvasive Technologies Related to Assistive Environments, (237-246)
- Barneche-Naya V and Hernández-Ibáñez L Assessement of Assisted Navigation in NUI Virtual Architectural Environments Learning and Collaboration Technologies. Novel Technological Environments, (14-23)
- Schaffer O Development and Preliminary Validation of the Enjoyment Questionnaire and the Sources of Enjoyment Questionnaire CHI Conference on Human Factors in Computing Systems Extended Abstracts, (1-7)
- Bourgos N, Chroni A, Kounalaki M, Papadopoulou E, Skarmitzos A, Triantafilli A, Zagota I, Sintoris C and Avouris N On evaluating online teaching and learning experience: A usability evaluation study of synchronous teaching platforms CHI Greece 2021: 1st International Conference of the ACM Greek SIGCHI Chapter, (1-7)
- Assmann M, Zanatta A and De Marchi A Long-term user experience in software crowdsourcing platform Proceedings of the XX Brazilian Symposium on Human Factors in Computing Systems, (1-7)
- Norem S, Rice A, Erwin S, Bridges R, Oesch S and Weber B A Mathematical Framework for Evaluation of SOAR Tools with Limited Survey Data Computer Security. ESORICS 2021 International Workshops, (557-575)
- Wang T, Noaki Y and Kuzuoka H Exploring How to Display Referential Action to Support Remote Group Discussion Proceedings of the Asian CHI Symposium 2021, (89-96)
- Gray T and De Vries M Empirical Evaluation of a New DEMO Modelling Tool that Facilitates Model Transformations Advances in Conceptual Modeling, (189-199)
- Lusk C and Jones M Cake Cam Proceedings of the 21st International Conference on Human-Computer Interaction with Mobile Devices and Services, (1-9)
- Barneche-Naya V and Hernández-Ibáñez L UX Aspects of Kinect-Based Movement Schemes Inside Virtual Environments for Museum Installations Learning and Collaboration Technologies. Ubiquitous and Virtual Environments for Learning and Collaboration, (133-150)
- Maldar M Engaging end-users as UX designers Proceedings of the 14th International Conference on Global Software Engineering, (62-65)
- Sciascio C, Strohmaier D, Errecalde M and Veas E (2019). Interactive Quality Analytics of User-generated Content, ACM Transactions on Interactive Intelligent Systems, 9:2-3, (1-42), Online publication date: 25-Apr-2019.
- Galea C and Porter C Accessible choral ensembles for visually impaired singers Proceedings of the 32nd International BCS Human Computer Interaction Conference, (1-10)
- Brühlmann F, Vollenwyder B, Opwis K and Mekler E Measuring the “Why” of Interaction Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems, (1-13)
- Cristea D, Pistol I and Gîfu D Connecting the Content of Books to the Web and the Real World Computational Linguistics and Intelligent Text Processing, (50-61)
- Tesoriero R, Fardoun H, Awada H and Raisinghani M (2018). Accessing Map Information Using NFC-Based User Interfaces for In-Situ Learning Environments, International Journal of Online Pedagogy and Course Design, 8:1, (13-28), Online publication date: 1-Jan-2018.
- Sciascio C, Sabol V and Veas E (2017). Supporting Exploratory Search with a Visual User-Driven Approach, ACM Transactions on Interactive Intelligent Systems, 7:4, (1-35), Online publication date: 31-Dec-2018.
- Gomes D, dos Reis P, de Paiva A, Silva A, Braz G, de Arajo A and Gattass M (2017). Semi-automatic methodology for augmented panorama development in industrial outdoor environments, Advances in Engineering Software, 114:C, (282-294), Online publication date: 1-Dec-2017.
- Rummel B (2017). Predicting post-task user satisfaction with weibull analysis of task completion times, Journal of Usability Studies, 13:1, (5-16), Online publication date: 1-Nov-2017.
- Ferracani A, Faustino M, Giannini G, Landucci L and Del Bimbo A Natural Experiences in Museums through Virtual Reality and Voice Commands Proceedings of the 25th ACM international conference on Multimedia, (1233-1234)
- Khaet F and Alfimtsev A The extended model of goals, operators, methods and selection rules (GOMS) for gesture interfaces Proceedings of the 13th Central & Eastern European Software Engineering Conference in Russia, (1-9)
- Huenerfauth M, Patel K and Berke L Design and Psychometric Evaluation of an American Sign Language Translation of the System Usability Scale Proceedings of the 19th International ACM SIGACCESS Conference on Computers and Accessibility, (175-184)
- Schiavo G, Leonardi C, Pasolli M, Sarti S and Zancanaro M Weigh it and share it! Proceedings of the 19th International Conference on Human-Computer Interaction with Mobile Devices and Services, (1-12)
- Seidenari L, Baecchi C, Uricchio T, Ferracani A, Bertini M and Bimbo A (2017). Deep Artwork Detection and Retrieval for Automatic Context-Aware Audio Guides, ACM Transactions on Multimedia Computing, Communications, and Applications, 13:3s, (1-21), Online publication date: 31-Aug-2017.
- Bond R, Mulvenna M, Wallace J, Finlay D, Boyd K and Patterson M UX-handle Proceedings of the 31st British Computer Society Human Computer Interaction Conference, (1-2)
- Frank J and Kapila V (2017). Mixed-reality learning environments, Computers & Education, 110:C, (88-104), Online publication date: 1-Jul-2017.
- Wang C, Geelgoed E and Cesar P eTheatre Proceedings of the Fifth International Symposium of Chinese CHI, (1-10)
- Borrego G, Morán A and Palacio R Preliminary evaluation of a tag-based knowledge condensation tool in agile and distributed teams Proceedings of the 12th International Conference on Global Software Engineering, (51-55)
- Gai W, Yang C, Bian Y, Shen C, Meng X, Wang L, Liu J, Dong M, Niu C and Lin C Supporting Easy Physical-to-Virtual Creation of Mobile VR Maze Games Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems, (5016-5028)
- Gennari R, Melonio A, Raccanello D, Brondino M, Dodero G, Pasini M and Torello S (2017). Children's emotions and quality of products in participatory game design, International Journal of Human-Computer Studies, 101:C, (45-61), Online publication date: 1-May-2017.
- Nguyen T and Ricci F Dynamic elicitation of user preferences in a chat-based group recommender system Proceedings of the Symposium on Applied Computing, (1685-1692)
- di Sciascio C, Strohmaier D, Errecalde M and Veas E WikiLyzer Proceedings of the 22nd International Conference on Intelligent User Interfaces, (377-388)
- Koutsabasis P (2017). Empirical Evaluations of Interactive Systems in Cultural Heritage, International Journal of Computational Methods in Heritage Science, 1:1, (100-122), Online publication date: 1-Jan-2017.
- Moretti G, Sprugnoli R, Menini S and Tonelli S (2016). ALCIDE, Knowledge-Based Systems, 111:C, (100-112), Online publication date: 1-Nov-2016.
- Ruoti S, Andersen J, Hendershot T, Zappala D and Seamons K Private Webmail 2.0 Proceedings of the 29th Annual Symposium on User Interface Software and Technology, (461-472)
- Cutting E, Banchero M, Beitelshees A, Cimino J, Fiol G, Gurses A, Hoffman M, Jeng L, Kawamoto K, Kelemen M, Pincus H, Shuldiner A, Williams M, Pollin T and Overby C (2016). User-centered design of multi-gene sequencing panel reports for clinicians, Journal of Biomedical Informatics, 63:C, (1-10), Online publication date: 1-Oct-2016.
- di Sciascio C, Sabol V and Veas E Rank As You Go Proceedings of the 21st International Conference on Intelligent User Interfaces, (118-129)
- Brown M, Chinthammit W and Nixon P An Implementation of Tangible Interactive Mapping to Improve Adult Learning for Preparing for Bushfire Proceedings of the Annual Meeting of the Australian Special Interest Group for Computer Human Interaction, (545-548)
- Miller C, Settle A and Lalor J Learning Object-Oriented Programming in Python Proceedings of the 16th Annual Conference on Information Technology Education, (59-64)
- Elhart I, Scacchi F, Niforatos E and Langheinrich M ShadowTouch Proceedings of the 4th International Symposium on Pervasive Displays, (209-216)
- Pang C, Neustaedter C, Procyk J and Riecke B A comparison of visual and textual city portal designs on desktop and mobile interfaces Proceedings of the 41st Graphics Interface Conference, (211-218)
- Doumanis I and Smith S Evaluating the Impact of Embodied Conversational Agents (ECAs) Attentional Behaviors on User Retention of Cultural Content in a Simulated Mobile Environment Proceedings of the 7th Workshop on Eye Gaze in Intelligent Human Machine Interaction: Eye-Gaze & Multimodality, (27-32)
- Staheli D, Yu T, Crouser R, Damodaran S, Nam K, O'Gwynn D, McKenna S and Harrison L Visualization evaluation for cyber security Proceedings of the Eleventh Workshop on Visualization for Cyber Security, (49-56)
- Alves R, Valente P and Nunes N The state of user experience evaluation practice Proceedings of the 8th Nordic Conference on Human-Computer Interaction: Fun, Fast, Foundational, (93-102)
- Dodero G, Gennari R, Melonio A and Torello S Towards tangible gamified co-design at school Proceedings of the first ACM SIGCHI annual symposium on Computer-human interaction in play, (77-86)
- Oh C, Park J and Suh B Gravity Proceedings of the 16th international conference on Human-computer interaction with mobile devices & services, (519-524)
- Schild J, LaViola J and Masuch M Altering gameplay behavior using stereoscopic 3D vision-based video game design Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, (207-216)
- Pilloni P, Mulas F, Piredda L and Carta S Assessing the User Experience Design as a Persuasive Methodology in a Real World Sport Application Proceedings of International Conference on Advances in Mobile Computing & Multimedia, (387-394)
- Bias R, Kortum P, Sauro J and Gillan D (2013). Clothing the naked emperor, Interactions, 20:6, (72-77), Online publication date: 1-Nov-2013.
- Borsci S, Macredie R, Barnett J, Martin J, Kuljis J and Young T (2013). Reviewing and Extending the Five-User Assumption, ACM Transactions on Computer-Human Interaction, 20:5, (1-23), Online publication date: 1-Nov-2013.
- Bartuskova A and Krejcar O Evaluation Framework for User Preference Research Implemented as Web Application Proceedings of the 5th International Conference on Computational Collective Intelligence. Technologies and Applications - Volume 8083, (537-548)
- Lewis J, Utesch B and Maher D UMUX-LITE Proceedings of the SIGCHI Conference on Human Factors in Computing Systems, (2099-2102)
- Bertolus C, Feuillet T and Bailleul D Analyse de l'usage fonctionnel des services audiovisuels des foyers disposant de l'IPTV Proceedings of the 2012 Conference on Ergonomie et Interaction homme-machine, (161-168)
- Courtemanche F, Dufresne A and Aïmeur E Un Outil d'Évaluation de l'Interaction intégrant l'Oculométrie et les Signaux Physiologiques Proceedings of the 2012 Conference on Ergonomie et Interaction homme-machine, (33-40)
Index Terms
- Quantifying the User Experience: Practical Statistics for User Research