Books

  1. Measuring the User Experience by Tom Tullis & Bill Albert
  2. Beyond the Usability Lab by Bill Albert, Tom Tullis & Donna Tedesco
  3. Practical Guide to Usability Testing by Joe Dumas & Ginny Redish
  4. Usability Engineering by Jakob Nielsen
  5. Practical Guide to Measuring Usability (also available electronically) by Jeff Sauro
  6. Handbook of Usability Testing by Jeff Rubin & Dana Chisnell
  7. Moderating Usability Tests by Joe Dumas & Beth Loring
  8. Quantifying the User Experience: Practical Statistics for User Research by Jeff Sauro & Jim Lewis

    Chapters

  9. Usability Testing Chapter by Jim Lewis[pdf] in The Handbook of Human Factors and Ergonomics, Third Edition Edited by Gavriel Salvendy
  10. Usability Testing Chapter by Jakob Nielsen in The Handbook of Human Factors and Ergonomics, Second Edition Edited by Gavriel Salvendy
  11. Usability Testing by Joe Dumas & Jean Fox in the HCI Handbook by Jacko & Sears

    Papers, Proceedings & Web Resources

  12. Journal of Usability Studies
  13. Association for Computing Machinery (ACM) Portal CHI Proceedings
  14. Proceedings of the Human Factors & Ergonomics Society Annual Conferences
  15. Usability Scorecard
  16. Single Usability Metric (SUM) Excel Calculator 
  17. The international standard definition of Usability (ISO 9241 part 11)
  18. Web Design Evaluation & Testing List at the University of Minnesota
  19. Alertbox : Nielsen’s classic source (dig in the archives)

    Questionnaires

  20. The System Usability Scale (SUS) [pdf] (software, hardware, websites)
  21. SUMI (software)
  22. PSSUQ [pdf] (software, hardware & websites)
  23. SUPR-Q and WAMMI (websites)
  24. A Meta Analysis of several studies using questionnaires Measuring Usability: Preference vs. Performance by Nielsen and Levy
  25. FAQ’s about Questionnaires