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Quantifying the User Experience Practical Statistics for User Research

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ISBN-10: 0123849683

ISBN-13: 9780123849687

Edition: 2012

Authors: Jeff Sauro, James R. Lewis

List price: $34.99
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You're being asked to quantify your usability improvements with statistics. But even with a background in statistics, you are hesitant to statistically analyze their data, as they are often unsure which statistical tests to use and have trouble defending the use of small test sample sizes.The book is about providing a practical guide on how to solve common quantitative problems arising in usability testing with statistics. 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…    
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Book details

List price: $34.99
Copyright year: 2012
Publisher: Elsevier Science & Technology
Publication date: 4/25/2012
Binding: Paperback
Pages: 312
Size: 7.50" wide x 9.21" long x 0.75" tall
Weight: 1.386
Language: English

Dr. James R. (Jim) Lewis is a senior human factors engineer (at IBM since 1981) with a current focus on the design and evaluation of speech applications and is the author of Practical Speech User Interface Design. He is a Certified Human Factors Professional with a Ph.D. in Experimental Psychology (Psycholinguistics), an M.A. in Engineering Psychology, and an M.M. in Music Theory and Composition. Jim is an internationally recognized expert in usability testing and measurement, contributing (by invitation) the chapter on usability testing for the 3rd and 4th editions of the Handbook of Human Factors and Ergonomics and presenting tutorials on usability testing and metrics at various…    

About the Authors
Introduction and How to Use This Book
Quantifying User Research
How Precise Are Our Estimates? Confidence Intervals
Did We Meet or Exceed Our Goal?
Is There a Statistical Difference between Designs?
What Sample Sizes Do We Need?
Summative Studies
What Sample Sizes Do We Need?
Formative Studies
Standard Usability Questionnaires
Six Enduring Controversies in Measurement and Statistics
Wrapping Up