Hey, thanks for your response! I am actually planning to do the cross-device test in a usability lab w/ eye-tracking on both desktop and phone. I should have clarified that. It is going to be a comparative study - so I will need users to try their cross-device task on website A, and then try it again on website B.
For both website A and website B, the user will need to do the same tasks, on the same device/task combo. I am still working out the details of what those tasks will be - but they will be relatively simple. My goal is to evaluate which of the two sites navigation models (A or B) had the best UX from a cross-device perspective for the tasks at hand.
With all of this in mind, do you have any suggestions/best practices for testing tasks cross-device? What I am seeing in the HCI literature re: cross device research, is there seem to be a lot of open-ended field studies. I am not seeing a lot of lab studies. An open-ended field study sounds very interesting - but for this particular project, I am not looking for something that exploratory, my needs for the research are much more focused (and my resources are limited as well).
Any other thoughts?