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Fitts's Law is the thing you want to test. Fitts's law (often cited as Fitts' law) is a model of human movement primarily used in human–computer interaction and ergonomics that predicts that the time required to rapidly move to a target area is a function of the distance to the target and the size of the target. Fitts's law is used to model the act of ...


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As Erics said: use Fitts Law. As for the experiment, the industry accepted standard is available in ISO 9241-9. It uses Fitts Law and throughput for calculation You can find one Java implementation here. If you're interested in reading a little bit more on why use the standard, I recommend this paper. If you wish to build your own experiment and completely ...


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Yes, the Fitts' paradigm has been converted to touch related events. Bi, Li & Zhai (2013) proposed a new version of the Fitts' paradigm's Index of Difficulty. However, I have not found reports stating experiences from others with this model. Basic Fitts' law describes correlation between motion time MT and the Index of Difficulty of the pointing ...


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Leaving space between the active areas reduces the chance of launching the wrong app. Though it also reduces the chances of launching the right app, the trade-off is worth it, especially when you consider the costs associated with not launching the right app on the first press (just try again a split-second later) and the costs associated with launching ...



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