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Principles of Practice Design and Fitts' Law

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Principles of Practice Design and Fitts' Law

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Questions and Answers

What does Fitts' Law primarily describe?

The relationship between speed and accuracy in motor skills. (correct)

The relationship between speed and distance traveled.

The constant factors in movement time calculations.

The effects of practice design on motor skill acquisition.

In the formula MT = a + b[log₂(2A/W)], what does 'W' represent?

Distance to be moved.

Width of the target. (correct)

Variable for accuracy.

Movement time constant.

What is a key goal of the exploration activity related to Fitts' Law?

To demonstrate the impact of distance on movement performance.

To propose redesign strategies for maximizing desktop efficiency. (correct)

To calculate the average movement time across various tasks.

To analyze the effects of virtual reality on motor skills.

What kind of experiments are involved in the activity?

<p>Experiments that explore speed-accuracy tradeoffs in a specific setting.</p> Signup and view all the answers

How can Fitts' Law be applied beyond motor skill tasks?

<p>It influences the design of user interfaces for computer functions.</p> Signup and view all the answers

Study Notes

Principles of Practice Design

Learners may adopt less efficient kicking patterns to hit targets. Practitioners should eliminate targets, make them larger, or emphasize speed.
Examples include throwing a ball far across a gym, lacrosse balls into a soccer goal instead of lacrosse, or hitting a tennis ball against a backstop.
To investigate how speed and accuracy are related, try Exploration Activity 9.2.

Fitts' Law

Fitts' Law describes how speed and accuracy are related mathematically.
MT = a + b [log2(2A/W)] where:
- MT = movement time
- a & b = constants
- A = distance to be moved
- W = width of the target
Fitts' Law states that movement time for rapid aiming tasks is linearly related to the distance to be moved and the width of the target.
See the website http://fww.few.vu.nl/hci/interactive/fitts/ for a demonstration.
Fitts' Law influences computer tasks and can be used to redesign the desktop for efficiency.

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Description

Explore the intricate relationship between speed and accuracy in sports and computer tasks through Fitts' Law. This quiz examines how practitioners can design practice sessions for optimal performance. Engage in practical applications of these principles to enhance movement efficiency.