Beyond the five-user assumption: Benefits of increased sample sizes in usability testing

Behavior Research Methods, Instruments, and Computers

Volumn 35, Issue 3, 2003, Pages 379-383

  Faulkner, Laura ^a  

^a UNIVERSITY OF TEXAS AT AUSTIN   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0346271799     PISSN: 07433808     EISSN: None     Source Type: Journal    
DOI: 10.3758/BF03195514     Document Type: Conference Paper

References (11)

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3. LANDAUER, T. K., & NIELSEN, J. (1993). A mathematical model of the finding of usability problems. Interchi '93, ACM Computer-Human Interface Special Interest Group.
4. NIELSEN, J. (1993). Usability engineering. Boston: AP Professional.
5. NIELSEN, J. (2000, March). Why you only need to test with 5 users: Alertbox. Retrieved April 15, 2003 from http://www.useit.com/ alertbox/20000319.html.
6. PERFETTI, C., & LANDESMAN, L. (2002). Eight is not enough. Retrieved April 14, 2003 from http://world.std.com/̃uieweb/Articles/eight_is_not_enough.htm.
7. REASON, J. (1997). Managing the risks of organizational accidents. Brookfield, VT: Ashgate.
8. SPOOL, J., & SCHROEDER, W. (2001). Testing web sites: Five users is nowhere near enough. In CHI 2001 Extended Abstracts (pp. 285-286). New York: ACM Press.
9. VIRZI, R. A. (1992). Refining the test phase of usability evaluation: How many subjects is enough? Human Factors, 34, 457-468.
10. WENTWORTH, R. J. (1996, March). Group chairman's factual report (American Airlines Flight 965). Washington, DC: National Transportation Safety Board, Office of Aviation Safety.
11. WOOLRYCH, A., & COCKTON, G. (2001). Why and when five test users aren't enough. In J. Vanderdonckt, A. Blandford, & A. Derycke (Eds.), Proceedings of IHM-HCI 2001 Conference: Vol. 2 (pp. 105-108). Toulouse, France: Cépadèus.