Measuring Usability
Quantitative Usability, Statistics & Six Sigma by Jeff Sauro

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Usability Testing (19)

Sample Size (18)

UX (12)

Task Time (11)

Survey (11)

Usability (11)

SUS (11)

Questionnaires (9)

Usability Problems (9)

Rating Scale (8)

Net Promoter Score (7)

Statistics (7)

Remote Usability Testing (7)

Usability Metrics (6)

Problem Discovery (6)

Satisfaction (6)

Confidence Intervals (5)

Task Completion (5)

Formative Testing (3)

Regression Analysis (3)

User Research (3)

Summative (3)

Loyalty (3)

Heuristic Evaluation (3)

SUPR-Q (3)

Margin of Error (2)

Credibility (2)

Card Sorting (2)

Qualitative (2)

Information Architecture (2)

Sampling (2)

Crowdsourcing (2)

Clicks (2)

PhD (2)

Benchmarking (2)

Mobile Usability Testing (2)

SEQ (2)

Keystroke Level Modeling (2)

Problem Severity (2)

Cognitive Walkthrough (2)

Task Times (1)

Task Failure (1)

Salaries (1)

Ordinal (1)

Completion Rate (1)

Z-score (1)

UI Disasters (1)

Interval (1)

Marketing (1)

Top Box Scoring (1)

Monte Carlo (1)

Return on Investment (1)

Ethonographic Research (1)

Geometric Mean (1)

Key Drivers (1)

Median (1)

Methods (1)

Evidence Based Design (1)

A/B Testing (1)

iPhone (1)

Analytics (1)

Lean UX (1)

Correlation (1)

Errors (1)

Reliability (1)

Think Aloud (1)

Post-Task Ratings (1)

Quality Assurance (1)

Most Popular Articles

Why you only need to test with five users (explained)

Confidence Interval Calculator for a Completion Rate

How much is a PhD Worth?

Does better usability increase customer loyalty?

What five users can tell you that 5000 cannot

5 Second Usability Tests

How common are usability problems?

The Five Most Influential Papers in Usability

Top 10 Research-Based Usability Findings of 2010

8 Ways to Show Design Changes Improved the User Experience

10 Things to Know about Usability Problems

A Brief History of the Magic Number 5 in Usability Testing

97 Things to Know about Usability

Should you use 5 or 7 point scales?

25 Resources for Measuring Usability

Most Recent Articles

Measuring Errors in the User Experience 17 hours ago

5 Valuable Skills for UX Professionals 7 days ago

How to Conduct a Usability test on a Mobile Device 15 days ago

10 Things to Know about Net Promoter Scores and the User Experience 21 days ago

The Essential Elements of a Successful Website 224 days ago

Are women paid less than men in UX? 245 days ago

How much are you worth? 2011 Salary Data for UX Professionals 266 days ago

Usability and Net Promoter Benchmarks for Consumer Software 343 days ago

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About Jeff Sauro

Jeff Sauro is the founding principal of Measuring Usability LLC, a company providing statistics and usability consulting to Fortune 1000 companies.
He is the author of over 15 journal articles and 3 books on statistics and the user-experience.
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Jeff's Books

Quantifying the User Experience: Practical Statistics for User ResearchQuantifying the User Experience: Practical Statistics for User Research

The most comprehensive statistical resource for UX Professions (JUST RELEASED)

Buy on Amazon

Excel & R Companion to Quantifying the User ExperienceExcel & R Companion to Quantifying the User Experience

Detailed Steps to Solve over 100 Examples and Exercises in the Excel Calculator and R

Buy on Amazon | Download

A Practical Guide to the System Usability ScaleA Practical Guide to the System Usability Scale

Background, Benchmarks & Best Practices for the most popular usability questionnaire

Buy on Amazon | Download

A Practical Guide to Measuring UsabilityA Practical Guide to Measuring Usability

72 Answers to the Most Common Questions about Quantifying the Usability of Websites and Software

Buy on Amazon | Download

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