In a two-hand aiming task in which the right hand must move to a target that has an ID of 4,and the left hand must simultaneously move to a target that has an ID of 2,when will each hand arrive at the target?
A) The right hand will arrive much earlier than the left hand
B) The left hand will arrive much earlier than the right hand
C) The two hands will arrive at approximately the same time
D) The preferred hand will arrive first regardless of the ID

Question

Quizplus · Accepted Answer

The Fitts' Law equation predicts that movement time is proportional to the logarithm of the movement distance divided by the target width (MT = a + b log2(2D/W)). Since both targets have equal width and one target has twice the distance of the other, the movement time for both hands will be similar, resulting in the two hands arriving at approximately the same time.

In a Two-Hand Aiming Task in Which the Right Hand