# Quantifying the User Experience

**Practical Statistics for User Research**

**By**

- Jeff Sauro, Jeff Sauro, M.A., Measuring Usability LLC, Usability Metrics and Statistical Analyst
- James Lewis, James R. Lewis, PhD, Senior Human Factors Engineer, IBM

### Audience

Usability and user experience practitioners, software and web-development professionals, marketers, information architects, interaction designers, business analysts, market researchers, and students in these and related fields

### Book information

- Published: March 2012
- Imprint: MORGAN KAUFMANN
- ISBN: 978-0-12-384968-7

### Reviews

**Technical Communication, May 2013**

**ComputingReviews.com**, March 19, 2013

"The most unique contributions of this book are the logic and practicality used to describe the appropriate application of those measuresâ€¦Sauro and Lewis strike a perfect balance between the complexity of statistical theory and the simplicity of applying statistics practically. Whether you wish to delve deeper into the enduring controversies in statistics, or simply wish to understand the difference between a t-test and Chi-square, you will find your answer in this book. Quantifying the User Experience is an invaluable resource for those who are conducting user research in industry."--

**User Experience, Vol. 13, Issue 1, 1st Quarter**

"Written in a conversational style for those who measure behavior and attitudes of people as they interact with technology interfaces, this guide walks readers through common questions and problems encountered when conducting, analyzing, and reporting on user research projects using statistics, such as problems related to estimates and confidence intervals, sample sizes, and standardized usability questionnaires. For readers with varied backgrounds in statistics, the book includes discussion of concepts as necessary and gives examples from real user research studies. The book begins with a background chapter overviewing common ways to quantify user research and a review of fundamental statistical concepts. The material provides enough detail in its formulas and examples to let readers do all computations in Excel, and a website offers an Excel calculator for purchase created by the authors, which performs all the computations covered in the book. An appendix offers a crash course on fundamental statistical concepts.

**"--Reference and Research Book News, August 2012, page 186-7**