Think Aloud User Testing - Austin Center for Design
Think Aloud User Testing - Austin Center for Design
Think Aloud User Testing - Austin Center for Design
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
<strong>Think</strong> <strong>Aloud</strong> – How Many <strong>User</strong>s?<br />
Lowest Percentage of Usability Problems Found<br />
25% 50% 75% 100%<br />
Diminishing Returns<br />
Source: Beyond the five-user<br />
assumption: Benefits of<br />
increased sample sizes in<br />
usability testing. By Laura<br />
Faulkner, University of Texas,<br />
<strong>Austin</strong>, Texas. In Behavior<br />
Research Methods,<br />
Instruments, & Computers.<br />
2003, 35 (3), 379-383<br />
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16<br />
Number of <strong>User</strong>s<br />
17 18 19 20 21 22 23<br />
17
Change language