K361 - lab 4 - Jordan Becker K361-301 Fitt's Law Speed...

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Jordan Becker K361-301 Fitt’s Law: Speed Accuracy Trade-Off Fitt’s Law is a relationship between the speed and accuracy in aiming movements (lab notes, 2008). MT = a + b [Log 2 (2A/W)] H 0 : Movement time will be lower for paper/pencil trials. Movement time in both trials will increase exponentially as index of difficulty increases. Analysis: See individual and lab group results for paper/pencil and computer/mouse. Individual Results ID Paper/Pencil # Taps Avg MT(ms) Computer/Mouse # Taps Avg MT(ms) 2 86 232.56 60 333.33 3 84 238.09 28 714.29 4 70 285.71 26 769.23 5 42 476.19 17 1176.47 6 28 714.29 13 1538.46 Lab Group Results ID Paper/Pencil MT(ms) Computer/Mouse MT(ms) 2 252.24 285.39 3 316 543.71 4 399.8 738.5 5 601.5 936.09 6 683.45 1432.78 Discussion: The results have mostly linear relationships, my individual and the lab group results included. Fitt’s Law predicts a linear relationship with MT increasing incrementally with b as the index of difficulty increases. The one graph that is least linear
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K361 - lab 4 - Jordan Becker K361-301 Fitt's Law Speed...

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