Many organizations still believe usability testing is a luxury that requires an expensively equipped lab and takes weeks to conduct.

In fact, usability tests can be both fast and relatively cheap. You don’t need expensive prototypes; low-tech paper prototype tests can also bring valuable results. You don’t need a lot of participants either, even 5 users can be enough to test for specific tasks, and the recruiting can also be done guerilla-style. For many projects, you can even use remote and unmoderated tests.

https://uxmyths.com/post/831431504/myth-22-usability-testing-is-expensive

Busted!