One fitts’ law, two metrics
Published in IFIP INTERACT, 2017
Recommended citation: Gori, Julien, et al. "One Fitts law, two metrics." IFIP Conference on Human-Computer Interaction. Springer, Cham, 2017. https://hal.inria.fr/hal-01717202/document
Fitts’ law is used in HCI to measure the average, best performances. Here we argue that it would be more clear to use two distinct metrics, one for the average performance, the other for the best performance. This is particularly useful when comparing data from a controlled study to more ecologically valid data.