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Title:
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COGNITIVE ABILITY FACTORS WHICH AFFECT PDA USABILITY ACROSS THE ADULT LIFESPAN |
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Author(s):
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Peter Graf , Hiroe Li |
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ISBN:
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978-972-8924-39-3 |
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Editors:
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António Palma dos Reis, Katherine Blashki and Yingcai Xiao (series editors:Piet Kommers, Pedro Isaías and Nian-Shing Chen) |
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Year:
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2007 |
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Edition:
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Single |
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Keywords:
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HCI, PDA usability, perceptual-cognitive skills, aging. |
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Type:
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Full Paper |
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First Page:
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99 |
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Last Page:
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108 |
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Language:
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English |
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Cover:
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Full Contents:
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click to dowload 
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Paper Abstract:
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Handheld computers are versatile tools but their limited screen-display areas and distinctive interfaces may constitute a
unique class of access barriers for older adults. The present study explored--across the adult lifespan--changes in
sensation, perception and cognition and their power to predict specific problems with using a Personal Digital Assistant
(PDA). The results showed an age-related increase in data entry errors and in the help required for carrying out PDA
tasks. On tasks that required extensive navigation the youngest participants made more errors than the older, but the latter
requested or required more frequent help, thereby highlighting the different learning styles of participants from different
age groups. |
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