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How does Fitts' Law fit pointing and dragging?Two experiments examined selecting text using a movement sequence of pointing and dragging. Experiment 1 showed that, in the Point-Drag sequence, the pointing time was related to the pointing distance but not to the width of the text to be selected; in contrast, pointing time was related to both the pointing distance and the width of the text in the Point-Click sequence. Experiment 2 demonstrated that both the pointing and dragging times for the Point-Drag sequence were sensitive to the height of the text that was selected. The discussion of the results centers around the application of Fitts' Law to pointing and dragging in a point-drag sequence, proposing that the target for pointing is the leftmost edge of the text to be selected, and the target for dragging is the rightmost edge of the text.
Document ID
19920061932
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gillan, Douglas J.
(Lockheed Engineering and Sciences Co.; Rice University Houston, TX, United States)
Holden, Kritina
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Adam, Susan
(Lockheed Engineering and Sciences Co. Houston, TX, United States)
Rudisill, Marianne
(NASA Johnson Space Center Houston, TX, United States)
Magee, Laura
(Lockheed Engineering and Sciences Co.; Rice University Houston, TX, United States)
Date Acquired
August 15, 2013
Publication Date
April 1, 1992
Subject Category
Man/System Technology And Life Support
Accession Number
92A44556
Funding Number(s)
CONTRACT_GRANT: NAS9-17900
Distribution Limits
Public
Copyright
Other

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