What's the device and operating system that your collaborator is using? It doesn't matter whether the mouse is wireless or wired, but if the device is touch-primary (as it self-declares), then you'll see the message unfortunately. For example, an iPad may do that, also some other touch-capable devices (but not all).
We don't think we'd like to remove this detection mechanism, because, as a whole, it very effectively prevents participants from not following directions. In a sense, what your collaborator experienced is a good thing - we want to make sure that not only a mouse is present, it's also IMPOSSIBLE to use touch at the same time. Because participants, when given the convenience of touch, will touch instead of using a mouse in most cases.
As a platform, we'd rather introduce the inconvenience of asking the participants to use a different device, rather than researchers finding missing mouse tracking data after the fact (although some marginal cases may still slip through).
Hope this helps!
We don't think we'd like to remove this detection mechanism, because, as a whole, it very effectively prevents participants from not following directions. In a sense, what your collaborator experienced is a good thing - we want to make sure that not only a mouse is present, it's also IMPOSSIBLE to use touch at the same time. Because participants, when given the convenience of touch, will touch instead of using a mouse in most cases.
As a platform, we'd rather introduce the inconvenience of asking the participants to use a different device, rather than researchers finding missing mouse tracking data after the fact (although some marginal cases may still slip through).
Hope this helps!