Itqualityassurance
- Why you should test with 5 users?
- How many participants is enough for user testing?
- How many users for unmoderated testing?
- How many testers do you need to solve 85 of problems?
Why you should test with 5 users?
In a research study from 2000, Jakob Nielsen and Tom Landauer found that you only need 5 users to test your application in order to identify 75-99% of all usability problems. You only need 3 to 5 users to identify the majority of usability issues.
How many participants is enough for user testing?
Summary: Elaborate usability tests are a waste of resources. The best results come from testing no more than 5 users and running as many small tests as you can afford.
How many users for unmoderated testing?
We recommend 5 participants since it will be sufficient enough to uncover the majority of usability issues. Next, select a user testing software to conduct the unmoderated sessions. Following that, you should create a list of tasks.
How many testers do you need to solve 85 of problems?
If you have 3 test users, you'll catch about 65% of the problems. With 4 users you'll catch 75%, and with 5 you'll catch 85%.
