Practice user testing vocabulary in design: prototype tests, usability issues, think-aloud protocol, task completion rates, and observation language.
0 / 5 completed
1 / 5
'The prototype test revealed 3 _____ issues.' What type of problems are found in user testing?
'Usability issues' are problems that prevent or hinder users from completing tasks — the primary output of prototype user testing sessions.
2 / 5
'5 users is enough to find _____% of problems.' What is Nielsen's usability testing benchmark?
Jakob Nielsen's research shows that 5 users in a usability test will surface approximately 85% of usability problems, making small-sample testing highly efficient.
3 / 5
What is the 'think-aloud protocol' in user testing?
The think-aloud protocol asks participants to verbalize their thoughts during the test, revealing mental models, confusion, and decision-making in real time.
4 / 5
'The task _____ rate was 60%.' What metric measures whether users finish what they set out to do?
'Task completion rate' measures the percentage of users who successfully complete a defined task — a core usability metric alongside time-on-task and errors.
5 / 5
'We observed the user getting confused at step _____.' How are usability issues typically located?
Noting the specific step where confusion occurs (e.g., 'step 3') allows designers to pinpoint and fix the exact interaction that causes friction.