What are your take on usability testing and responsive web sites? The flow of page objects, hiding and showing different types of menus or the resizing of objects could have a big impact on findability.
Let's say that you have worked with 3 break points and developed a small mobile version, a medium tablet version and a large desktop version. If you want to test the site on all these three versions, instead of the standard 6 test participants you now have to test it with 18 participants. The amount of work basically triples.
- How should you test and with how many?