Quantifying the User Experience
Jeff Sauro & James R. Lewis
The statistics designers need for usability data: sample sizes, confidence intervals and comparing designs honestly.
About this book
Quantifying the User Experience shows how to apply statistics to the everyday quantitative questions that come up in user research. Sauro and Lewis aim to give researchers and practitioners what they need to measure, qualify and defend their data with confidence. The authors build on decades of statistics from psychology, human factors and industrial engineering, plus their own published research, and supply Excel formulas and web calculators. The book also explains why the tests work and how to report the results clearly.
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